Pre-heat the oven to 375°F.
Unroll the crescent roll dough and arrange triangles on a pizza pan with points toward the center.
Overlap edges and press seams together to form the pizza crust.
Brush the crust generously with melted butter.
In a small bowl, mix the granulated sugar and cinnamon; sprinkle evenly over the buttered dough.
Place in the pre-heated oven and bake for 12 to 15 minutes until golden and cooked through.
While the pizza bakes, in a small bowl, whisk together confectioners' sugar, milk and vanilla extract to create a smooth glaze.
Remove pizza from the oven and drizzle the glaze over the warm pizza.
Slice into pieces and serve warm for the best texture and flavor.
