Caramelized Onion and Prosciutto Pizza

Pour the sauce, prosciutto, onion and cheese over the pizza. This pizza is the perfect dish for a dinner party!
Place the pizza dough on a large sheet of parchment paper. Cover with a damp towel; let rise in a warm place (85 °), draughty, for 45 minutes.Preheat the oven to 500 degrees.While the dough is rising, preheat a large nonstick skillet over medium-high heat. Add the butter; stir to coat. Add the onion; cook for 5 minutes, stirring frequently. Sprinkle with sugar and salt. Continue cooking for 15-20 minutes or until dark golden brown, stirring frequently.Roll out the dough into a 12-inch circle on parchment paper. Squeeze the edges of the dough with your fingers to make a rim. Place the dough and parchment paper on a large baking sheet. Place on the bottom rack in the oven. Bake at 500 ° C for 5 minutes.Spoon the pizza sauce over the cake, spreading it around the edge. Top with prosciutto, cheese and onion. Bake for another 10 minutes or until the crust is golden and the cheese is melted. Remove from the oven; let stand for 5 minutes. Cut into slices.Note: When using chilled pizza dough, let the dough rise as indicated in step 1 for 1 hour. Proceed as indicated in the recipe.Kids can help: Older kids can help stir the onions while they caramelize, and then everyone can pour sauce, prosciutto, onions, and cheese over their pizza.