Preheat your oven to 375°F (or air fryer to 350°F if using that route).
Unroll the crescent dough onto a parchment-lined baking sheet or air fryer tray and press the seams together to form a solid rectangle.
Brush the melted butter all over the dough—don’t be shy.
In a small bowl, mix the cinnamon and sugar together, then sprinkle it generously over the buttered dough.
Bake for 10–12 minutes, or until the edges are golden brown and your kitchen smells like cinnamon heaven.
While it's cooling slightly, mix powdered sugar with milk to make a quick glaze (optional but highly recommended).
Drizzle the glaze over your warm cinnamon sugar pizza, slice it up, and enjoy while slightly warm.