
Preheat oven to 450°F (230°C).
Brush a pizza pan or sheet pan with ½ tablespoon of melted butter.
In a medium bowl, mix together flour, white sugar, brown sugar, 1½ teaspoons cinnamon, and 2 tablespoons room-temperature butter until crumbly. Set aside.
Place pizza dough on the prepared pan.
Brush dough with ½ tablespoon melted butter.
Sprinkle remaining cinnamon evenly over the dough.
Spread crumble mixture evenly over the dough.
Bake for 8 to 10 minutes until crust is golden and topping is bubbly.
While pizza bakes, mix powdered sugar, milk, and vanilla in a small bowl for the glaze.
Let pizza cool for about 10 minutes.
Drizzle glaze over the pizza.
Slice and serve.