In a mixing bowl, combine flour, baking powder, salt, and granulated sugar. Whisk until blended. Add milk, melted butter, and egg. Stir gently until a soft dough forms.

In a separate bowl, mix brown sugar and ground cinnamon. Optionally, add mini chocolate chips or nuts. Combine with the dough or sprinkle on rolled-out dough.

Roll the dough into a log and slice into 1-inch pieces. Arrange on a lined baking sheet.

Preheat oven to 375°F (190°C). Bake for about 15 minutes until golden brown.

Prepare the glaze by whisking powdered sugar, vanilla extract, and milk until smooth.

Drizzle glaze over warm bites and let set before serving.