Step 1: Preheat the oven
Preheat your oven to 375°F (190°C). Line a baking sheet or pizza pan with parchment paper.

Step 2: Prepare the dough
Unroll the crescent roll dough and press the seams together to form one large rectangle or round, depending on the shape you want. You can stretch it slightly to form a more traditional pizza shape if desired.

Step 3: Add butter and cinnamon sugar
Brush the melted butter evenly over the surface of the dough. In a small bowl, combine the granulated sugar and cinnamon. Sprinkle this mixture generously over the buttered dough.

Step 4: Bake
Transfer the dough to the oven and bake for 10–12 minutes, or until the edges are golden brown and the sugar is bubbling slightly.

Step 5: Make the glaze
While the pizza is baking, whisk together powdered sugar, vanilla extract, and 1 tablespoon of milk. Add more milk a little at a time until you reach your desired drizzle consistency.

Step 6: Drizzle and serve
Once the cinnamon sugar pizza is done baking, remove it from the oven and let it cool for 5 minutes. Drizzle the glaze over the top using a spoon or fork. Slice and serve warm for the best texture and flavor.