Preheat the oven to 550°F and place a pizza stone inside. Let it heat for at least 45-60 minutes.
While the stone heats, warm olive oil in a medium saucepan over medium heat. Add garlic and sauté for about 20 seconds, until lightly golden.
Add tomatoes, season with salt, and bring to a gentle boil. Reduce the heat to low and simmer until the sauce thickens and reduces to about 1 cup, which should take 15-20 minutes.
Divide the dough into two equal portions. Note that you can only bake one pizza at a time.
Shape each dough portion into a 13-inch oval, working with one piece of dough at a time.
Transfer the shaped dough to a well-floured pizza peel. Sprinkle half of the mozzarella over the dough, then spread about 1/2 cup of sauce on top.
Carefully slide the pizza from the peel onto the preheated pizza stone. Bake for 4-7 minutes, until the crust is golden brown and the cheese is melted.
Repeat the process with the remaining dough. Once baked, sprinkle fresh basil on the pizzas, slice, and serve immediately while warm.
If using store-bought dough, let it come to room temperature before shaping.