In a large bowl, combine warm water, yeast, and sugar. Let it sit for 5 minutes until frothy.

Add flour, salt, and olive oil. Mix until a dough forms.

Knead the dough on a floured surface for about 5 minutes until smooth.

Place the dough in a greased bowl, cover, and let it rise for 1 hour.

Preheat the oven to 475°F (245°C) with a pizza stone inside.

Roll out the dough into a 12-inch circle and place it on a pizza peel.

Spread pizza sauce over the dough, then add mozzarella, pepperoni, bell peppers, and parmesan.

Carefully slide the pizza onto the hot stone. Bake for 15-20 minutes or until the crust is golden.

Remove from the oven, slice, and serve hot.