Preheat your oven to 350F.
Spray a cupcake pan with nonstick spray.
Mix melted butter and brown sugar in a small bowl. Add 1 tsp to each muffin cup.
Mix white sugar and cinnamon in a plastic bag, set aside.
Cut each biscuit into 5-6 pieces and place each piece into the bag and shake to coat evenly.
Place 8-10 biscuit pieces into each muffin cup. Try to make each of them filled evenly.
If you have any cinnamon sugar mixture left, sprinkle it on top of the muffins.
Bake for approximately 14 minutes.
Let cool 1 minute, and pop each muffin out of the pan and enjoy!