1Mix warm water, yeast, and a pinch of sugar in a bowl; let sit 5 minutes until foamy.
2Combine flour, 1 tsp salt, and olive oil in a large bowl; add yeast mixture and stir until shaggy dough forms.
3Knead dough on a lightly floured surface for 5–7 minutes until smooth and elastic.
4Place dough in an oiled bowl, cover with a damp towel, and let rise 20–30 minutes at room temperature until nearly doubled.
5While dough rises, make sauce: heat a small skillet over medium heat, sauté minced garlic 1 minute, add crushed tomatoes, oregano, 1/2 tsp salt, and pepper; simmer 10 minutes until slightly thickened, then cool.
6Preheat oven to 475°F and place pizza stone on the middle rack for at least 15 minutes.
7Stretch dough into a 12-inch round on a piece of parchment paper; transfer parchment to pizza stone.
8Spread sauce evenly over dough, leaving a 0.5-inch border; sprinkle mozzarella, then scatter pepperoni slices on top.
9Bake 12–15 minutes until crust is golden and cheese is bubbly and lightly browned.
10Remove from oven, let cool 2 minutes, then slice and serve.