Combine the sugar and cinnamon together in a bowl.
Dip the top of each biscuit into the cinnamon/sugar mixtures and place them on a baking sheet with the cinnamon and sugar mixture side facing up.
Bake the biscuits based on the package instructions. I baked mine at 400 degrees F for 8-11 minutes until the biscuits were slightly golden.
While the biscuits are baking, stir the milk and powdered sugar together to make a glaze for the biscuits. You can add more milk or powdered sugar to get the consistency that you prefer.
Once the biscuits are done, remove them from the oven, drizzle with the glaze and enjoy!