Making the Cinnamon Rolls:

1. Preheat the oven to 375°F. Grease an 8×11-inch baking dish with butter.
2. In a small bowl, mix the cinnamon and sugar together.
3. Lightly flour a clean surface, then roll out the pizza dough into a rectangle, about 16×10 inches.
4. Brush melted butter evenly over the surface of the dough.
5. Sprinkle the cinnamon-sugar mixture evenly across the dough.
6. Starting from the long edge, tightly roll the dough into a log.
7. Use a sharp knife to cut into 12 equal rolls, about 1½ inches thick.
8. Arrange the rolls in the prepared baking dish, leaving space between each.
9. Bake for 20 to 25 minutes, or until the rolls are golden brown.

Making the Glaze:

1. In a medium bowl, combine butter, powdered sugar, and vanilla extract.
2. Gradually whisk in hot water, 1 tablespoon at a time, until the glaze reaches the desired consistency.
3. Drizzle over warm cinnamon rolls and serve immediately.