There’s nothing quite like the satisfying aroma of freshly baked goods wafting through the kitchen, especially when those goodies are my Rhubarb Sticky Buns with Vanilla Bean Mascarpone Frosting. The delightful balance of tangy rhubarb nestled in fluffy brioche will have your taste buds singing, making these buns a perfect choice for brunch or an afternoon indulgence. With quick prep time and a crowd-pleasing flair, they’re bound to impress family and friends alike. Just imagine sinking your teeth into the pillowy softness topped with creamy frosting that adds a touch of sweetness. Ready to elevate your baking game? Let’s dive into the scrumptious world of these sticky buns and transform your kitchen into a haven of deliciousness!

Why not try this delightful twist?
Irresistible Flavor: The unique combination of tart rhubarb and fluffy brioche creates a mouthwatering treat that will surprise and delight your family and friends.
Quick Preparation: With a manageable prep time, you can enjoy homemade goodness without spending hours in the kitchen.
Crowd Pleaser: These buns are perfect for any occasion, seamlessly transitioning from a brunch centerpiece to a cozy afternoon snack alongside a cup of tea or coffee.
Customizable Joy: Feel free to swap rhubarb for other seasonal fruits like strawberries or blueberries, making each batch uniquely yours. If you’re exploring options, check out my Sticky Apple Cider Chicken or Coconut Curry Soup with Dumplings for even more delight!
Heavenly Frosting: Topping these buns with Vanilla Bean Mascarpone adds an elegant touch, elevating them to the next level of decadence. Not just sweet, it’s life-changing!
Dive into this baking adventure and relish every deliciously sticky bite!
Rhubarb Sticky Buns Ingredients
• Prepare to indulge in these delightful Rhubarb Sticky Buns with Vanilla Bean Mascarpone Frosting!
For the Rhubarb Jam
- Fresh rhubarb – adds a unique tartness that perfectly balances the sweetness of the frosting.
- Granulated sugar – enhances the natural sweetness of the rhubarb and helps create that delicious jam texture.
- Lemon juice – brightens the flavor of the jam, making it even more refreshing.
For the Brioche Dough
- All-purpose flour – offers the essential structure needed for those light and fluffy buns.
- Active dry yeast – ensures a perfect rise, giving the buns their soft, airy texture.
- Milk – using warm milk helps activate the yeast and gives the dough its delicious richness.
- Eggs – contribute extra richness and moisture for a tender crumb.
- Butter – creates a delectable flavor while ensuring the dough is wonderfully soft.
For the Vanilla Bean Mascarpone Frosting
- Mascarpone cheese – brings a rich, creamy base that’s irresistible.
- Vanilla bean paste – infuses a luxurious vanilla flavor that complements the buns beautifully.
- Powdered sugar – sweetens the frosting to perfection while keeping it light and fluffy.
- Heavy cream – adjusts the frosting’s consistency to ensure it spreads easily over the warm buns.
Get ready to bake your way to bliss with these luscious Rhubarb Sticky Buns topped with a heavenly Vanilla Bean Mascarpone Frosting!
Step‑by‑Step Instructions for Rhubarb Sticky Buns with Vanilla Bean Mascarpone
Step 1: Prepare Brioche Dough
In a large mixing bowl, combine warm milk, active dry yeast, and a pinch of sugar. Allow it to sit for about 5-10 minutes until bubbly. Add in the all-purpose flour, eggs, and softened butter, then knead the mixture for about 10 minutes until smooth and elastic. Once kneaded, place the dough in a greased bowl, cover it with a damp cloth, and let it rise in a warm spot until doubled in size, approximately 1-1.5 hours.
Step 2: Make Rhubarb Jam
While the dough rises, wash and chop fresh rhubarb into small pieces. In a saucepan over medium heat, combine the rhubarb, granulated sugar, and lemon juice. Cook for about 15-20 minutes, stirring occasionally, until the mixture thickens and the rhubarb breaks down. Remove from heat and let the jam cool to room temperature, allowing the flavors to meld perfectly for your Rhubarb Sticky Buns.
Step 3: Roll & Fill Buns
Once the brioche dough has risen, punch it down to release air. On a floured surface, roll out the dough into a large rectangle about ¼ inch thick. Spread a generous layer of the cooled rhubarb jam evenly over the surface, leaving a small border. Carefully roll the dough tightly from one end to the other, then slice it into equal pieces, about 1-2 inches thick. Place the cut buns in a greased baking dish, ensuring they are close but not touching.
Step 4: Second Proof
Cover the baking dish with a clean kitchen towel and allow the rolled buns to proof for about 30-45 minutes in a warm area. They should puff up slightly and fill the dish as they rise, indicating they are ready to bake. This second proofing step ensures your Rhubarb Sticky Buns will be extra fluffy and light.
Step 5: Bake
Preheat your oven to 350°F (175°C). Once the buns have proofed, place the baking dish in the oven and bake for 25-30 minutes or until they turn golden brown on top and the edges are bubbling. Keep an eye on them to prevent over-baking. The aroma of freshly baked Rhubarb Sticky Buns will fill your kitchen, making your mouth water with anticipation.
Step 6: Make Frosting
While the buns are baking, prepare the Vanilla Bean Mascarpone Frosting. In a mixing bowl, combine mascarpone cheese, powdered sugar, and vanilla bean paste. Using an electric mixer, whip until smooth and creamy. If the frosting is too thick, add a splash of heavy cream to reach a spreadable consistency. Once your Rhubarb Sticky Buns are out of the oven, this sweet topping will complement them beautifully.
Step 7: Top Buns
As soon as the buns come out of the oven, let them cool for a few minutes before generously spreading the Vanilla Bean Mascarpone Frosting over the warm buns. The heat from the buns will slightly melt the frosting, creating a deliciously creamy layer. Serve your Rhubarb Sticky Buns warm, and watch your family and friends delight in this irresistible treat!

Make Ahead Options
These Rhubarb Sticky Buns with Vanilla Bean Mascarpone Frosting are perfect for meal prep enthusiasts! You can assemble the buns up to 24 hours in advance, storing them covered in the refrigerator. This allows the flavors to meld beautifully while saving you time in the morning. If you prefer, make the rhubarb jam and brioche dough up to 3 days ahead and refrigerate separately. When it’s time to bake, let the assembled buns rise at room temperature for about 30-45 minutes before baking them in a preheated oven. This way, they’ll be just as fluffy and delicious as if you made them from scratch that day! Enjoy the convenience of homemade treats without the last-minute rush!
Expert Tips for Rhubarb Sticky Buns
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Perfectly Fluffy Buns: Allow the brioche dough to rise fully for the best texture. Avoid overproofing—keep an eye on the dough to prevent it from collapsing.
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Jam Consistency: When making rhubarb jam, aim for a thick, spreadable texture. If it’s too runny, cook it a few minutes longer.
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Cut Evenly: When slicing the rolled dough, use a sharp knife or dental floss for clean cuts. This helps the buns hold their shape and rise evenly.
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Frost Quickly: Spread the Vanilla Bean Mascarpone Frosting on your warm buns immediately after baking to help it melt slightly, creating a deliciously gooey finish.
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Storage Solution: Keep leftovers in an airtight container at room temperature for up to two days, but they’re best enjoyed fresh.
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Make Ahead: For brunch planning, assemble your Rhubarb Sticky Buns the night before and simply bake in the morning for fresh, warm treats.
Rhubarb Sticky Buns Variations
Feel free to explore these delicious twists that make the Rhubarb Sticky Buns even more fun and flavorful!
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Berry Bliss: Substitute rhubarb with fresh blueberries or strawberries for a sweeter, fruitier version that still holds its charm. Imagine the burst of juicy flavor in every bite!
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Nutty Crunch: Add chopped pecans or walnuts to the filling for a delightful crunch and rich, earthy flavor. The nuts elevate the texture, making these buns even more irresistible.
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Cream Cheese Frosting: Swap the Vanilla Bean Mascarpone Frosting with a tangy cream cheese version for a zesty contrast. The creaminess pairs beautifully with the soft, fluffy buns.
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Cinnamon Swirl: Sprinkle cinnamon and brown sugar over the rhubarb filling for a warm, comforting twist reminiscent of classic cinnamon rolls. This variation will have everyone reaching for seconds!
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Lemon Zest: Incorporate lemon zest into the frosting for an added zing that complements the tartness of rhubarb splendidly. It brightens the overall flavor profile, making each bite refreshing.
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Chai Spice: Stir in some chai spice (or your favorite warm spices) into the brioche dough for a subtly spiced flavor throughout. This twist adds a lovely warmth perfect for cozy gatherings.
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Double Frosting: Drizzle some vanilla glaze over the top of the Vanilla Bean Mascarpone for an extra sweet touch. You won’t be able to resist this decadent addition.
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Fruity Icing: Experiment with different frosting flavors like almond or maple to create a new signature topping for your buns. Each flavor brings a distinct flair, turning your buns into something truly special.
Dive into these variations to delight your family and friends, and don’t miss out on the unique flavor adventures they offer! If you’re in the mood for a wholesome dinner too, consider making my Peruvian Chicken Rice with Green Sauce for a well-rounded culinary experience.
What to Serve with Rhubarb Sticky Buns with Vanilla Bean Mascarpone
The luscious combination of textures and flavors makes for a perfect gathering, enhancing the joy that comes with sharing.
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Fresh Fruit Salad: A vibrant mix of seasonal fruits enhances the fruitiness of the buns and adds a refreshing crunch. Enjoy it alongside your sticky buns to balance the flavors.
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Nutty Granola: The crunch and earthiness of granola provide a delightful contrast to the fluffy texture of the buns. Serve it as a crunchy topping for those who crave a little extra texture.
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Coffee or Espresso: A rich brew pairs beautifully with the sweet and tart elements of the Rhubarb Sticky Buns. The warmth of coffee complements the icing, making every bite even more satisfying.
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Herbal Tea: A delicate herbal tea like chamomile or mint offers a fragrant contrast to the sweetness of the buns. Sip it as you savor the flavors for a cozy afternoon treat.
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Vanilla Ice Cream: Serving warm buns with a scoop of creamy vanilla ice cream is a heavenly combination. The cold creaminess melts into the warm buns, creating an unforgettable dessert experience.
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Whipped Cream Topping: Adding a dollop of lightly sweetened whipped cream takes these buns to a new level of indulgence. It’s a delightful touch that lightens the overall flavor profile.
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Sparkling Water with Citrus: Refreshing sparkling water infused with lemon or lime offers a zesty contrast. Pair it for a bright finish to your sweet feast.
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Chocolate Drizzle: For those looking to jazz up their buns, a light drizzle of melted chocolate will satisfy any sweet tooth. It brings a decadent touch that complements the vanilla frosting perfectly.
How to Store and Freeze Rhubarb Sticky Buns
Room Temperature: Store leftover Rhubarb Sticky Buns in an airtight container for up to 2 days to maintain their delightful softness.
Fridge: If you prefer chilled buns, refrigerate them wrapped in plastic. They’ll stay fresh for up to 4 days, but reheat them to enjoy their fluffy texture again.
Freezer: For longer storage, freeze the buns by placing them in a freezer-safe container or bag. They will keep well for up to 3 months. Reheat directly from frozen for best results.
Reheating: To reheat, warm the buns in the oven at 350°F (175°C) for about 10-15 minutes, or microwave them for about 15-20 seconds until just warm. Enjoy the melted frosting on top!

Rhubarb Sticky Buns with Vanilla Bean Mascarpone Frosting Recipe FAQs
How do I select the best rhubarb for this recipe?
Absolutely! Look for rhubarb stalks that are firm and crisp, with a vibrant red color. Avoid any that have dark spots or are limp, as they may be overripe. Fresh rhubarb should be juicy and slightly tart, perfect for that delightful filling in your Rhubarb Sticky Buns.
How should I store leftover rhubarb sticky buns?
For the best texture, store any leftovers in an airtight container at room temperature for up to 2 days. If you prefer them chilled, you can refrigerate them, wrapped in plastic, for up to 4 days. Just make sure to reheat before serving to enjoy their fluffiness!
Can I freeze the rhubarb sticky buns?
Very much so! To freeze your Rhubarb Sticky Buns, allow them to cool completely, then place them in a freezer-safe container or zip-top bag. They can be stored for up to 3 months. When you’re ready to enjoy them, simply reheat directly from frozen in a preheated oven at 350°F (175°C) for about 10-15 minutes.
What should I do if my dough isn’t rising properly?
If your dough isn’t rising, it might be due to inactive yeast or a cold environment. First, check the expiration date on your yeast, and remember to use warm milk (about 110°F or 43°C) to activate it. If the room is too cool, try placing the dough in a warm spot, like near an oven or in a turned-off oven with the light on, which helps create a warmer environment for rising.
Can I make these buns gluten-free?
While this recipe is not designed to be gluten-free, you can use a gluten-free all-purpose flour blend instead of regular flour. Ensure that your blend contains a binding agent like xanthan gum to achieve that fluffy texture. Keep in mind that results may vary, so it might take a little experimentation to get the texture just right!
What if my mascarpone frosting is too thick?
No worries! If you find your Vanilla Bean Mascarpone Frosting too thick, just add a splash of heavy cream to loosen it up a bit. Mix it in thoroughly until you reach your desired consistency. It should spread easily over the warm buns, creating that delicious melt-in-your-mouth experience!

Delicious Rhubarb Sticky Buns with Vanilla Bean Mascarpone Bliss
Ingredients
Equipment
Method
- In a large mixing bowl, combine warm milk, active dry yeast, and a pinch of sugar. Allow it to sit for about 5-10 minutes until bubbly.
- Add in the all-purpose flour, eggs, and softened butter, then knead the mixture for about 10 minutes until smooth and elastic.
- Place the dough in a greased bowl, cover it with a damp cloth, and let it rise in a warm spot until doubled in size, approximately 1-1.5 hours.
- While the dough rises, wash and chop fresh rhubarb into small pieces. In a saucepan over medium heat, combine the rhubarb, granulated sugar, and lemon juice. Cook for about 15-20 minutes, stirring occasionally, until the mixture thickens and the rhubarb breaks down.
- Remove from heat and let the jam cool to room temperature.
- Once the brioche dough has risen, punch it down to release air. On a floured surface, roll out the dough into a large rectangle about ¼ inch thick. Spread a generous layer of the cooled rhubarb jam evenly over the surface.
- Carefully roll the dough tightly from one end to the other, then slice it into equal pieces, about 1-2 inches thick. Place the cut buns in a greased baking dish.
- Cover the baking dish with a clean kitchen towel and allow the rolled buns to proof for about 30-45 minutes in a warm area.
- Preheat your oven to 350°F (175°C). Once the buns have proofed, bake for 25-30 minutes until golden brown.
- While the buns are baking, prepare the Vanilla Bean Mascarpone Frosting. In a mixing bowl, combine mascarpone cheese, powdered sugar, and vanilla bean paste. Whip until smooth.
- If the frosting is too thick, add a splash of heavy cream to reach a spreadable consistency.
- Once your buns are out of the oven, let them cool for a few minutes before generously spreading the frosting over them.

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