Cinnamon Pull-Apart Buns

Name: Cinnamon Pull-Apart Buns
Prep time: 15 min
Cook time: 15 min
Total time: 30 min
Ingredients: 1/4 cup Brown sugar, packed; 1 tsp Cinnamon; 1/3 cup Powdered sugar; 1/4 cup Sugar; 1 (16 ounce) tube Buttermilk biscuits; 1/4 cup Butter, unsalted; 2 tsp Milk