Raise oven rack to top third of the oven.
Preheat oven to 450℉
Oil round pizza crisper or sheet pan. Roll the dough almost to the edges. Then cover with plastic wrap and let rise in a warm area. As the dough rises, gently push the dough to the edges of the pan.Chef's tip: Use a water glass, and rub a little olive oil off the pan onto the sides of the glass. This makes rolling a breeze. Meanwhile, prepare the toppings. Shred the cheeses if necessary, slice the peaches, and mix the honey and fig preserves together in a small bowl.
After the dough has risen, lightly brush the crust with 1 teaspoon olive oil. Then gently spread the honey and fig preserves mixture on the surface of the dough. Sprinkle the thyme leaves, garlic and chili flakes, and then each of the three cheeses.
Toss the peaches with the balsamic vinegar, and arrange on the surface of the pizza. Then, scatter torn prosciutto slices to your preference (we like plenty!).
Bake for 10-15 minutes until the crust is golden and the cheese is bubbling.