For the dough: Preheat oven to 500F and place a pizza stone inside. Combine the yogurt and flour in a bowl. Mix until a shaggy dough forms. Transfer the dough to a floured surface and knead for 7-8 minutes until a smooth ball forms. I like to roll out my pizza dough on a piece of parchment paper, feel free to do whatever works best for you. Roll out the dough into a large circle. Carefully transfer the parchment paper to a pizza paddle and into the oven onto the pizza stone. Bake for 10-12 minutes, keeping a close eye on it, until the crust is browned and the cheese is melted and bubbly. Top with fresh basil leaves and chili flakes, if using. Let the pizza stand for a few minutes before slicing.