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.