Preheat and Prepare
Preheat your oven to 375°F (190°C). Line a baking sheet with parchment paper to prevent the dough from sticking and to make cleanup easier. This preparation ensures your pizza will bake evenly and release cleanly.
Shape the Dough
Unroll the crescent roll dough onto the prepared baking sheet. Using your fingers, press the perforated seams together to form one cohesive rectangular sheet. Make sure to press firmly to prevent the seams from separating during baking.
Add the Flavor
Brush the melted butter evenly across the entire surface of the dough, reaching all the way to the edges. In a small bowl, mix the granulated sugar and cinnamon together until well combined. Sprinkle this mixture uniformly over the buttered dough, creating a sweet and aromatic layer that will caramelize slightly during baking.
Bake
Place the baking sheet in the preheated oven and bake for 10-12 minutes. The pizza is done when the dough has puffed up and turned a beautiful golden brown color. Watch closely during the final minutes to prevent burning, as the sugar can caramelize quickly.
Prepare the Glaze
While the pizza is cooling slightly, make the glaze by whisking together the powdered sugar, milk, and vanilla extract in a small bowl. Adjust the consistency by adding more milk if it's too thick or more powdered sugar if it's too thin. The ideal glaze should be pourable but not runny.
Finish and Serve
Drizzle the glaze generously over the warm pizza in a decorative pattern. Cut into squares or wedges while still warm and serve immediately for the best taste and texture.