Preheat your oven to 375F
Grease a 10 x 7.5 rectangle baking dish, you can also use a 9" x 6" dish or anything similar.
Roll out your crescent roll dough. It should be in the shape of a rectangle.
Combine your butter, cinnamon, and brown sugar. Using a pastry brush, brush the mixture over the dough evenly.
Starting from the shorter side, roll up your dough so that it is in the shape of a log. Cut it in half, then cut each half in half, and then finally cut each piece in half again so that you have 8 equal rolls. Please the rolls evenly spaced apart in the baking dish.
Bake for 15 - 18 minutes or until golden brown all over
While it is baking, make your frosting by stirring the powdered sugar and milk together in a small bowl. Once your cinnamon rolls are done baking, drizzle your frosting over the rolls and enjoy.