Prep Time: 30
Cook Time: 18
Serves: Serves: 8
Melt butter in large skillet over medium heat. Add onions, cook 18 minutes or until carmelized and golden brown; stirring frequently. Stir in garlic and rosemary; cook 1 minute.
Pat or roll dough onto greased baking sheet forming a 12-inch circle; let rise in warm place 10 minutes.
Make impressions in surface of dough and spread evenly with onion mixture. Top with Mozzarella and Parmesan cheeses.
Bake in preheated 400°F oven 18 minutes or until golden brown. Cut into wedges; serve warm or at room temperature.