Pizzas with Prosciutto, Peas, Pea Sprouts and Gruyère Recipe

Ingredients

• 1 1/2 cups warm water (115°F to 120°F)
• 1 1/2 tablespoons active dry yeast (from 3 envelopes)
• 3 tablespoons olive oil, divided
• 1 tablespoon salt
• 3 1/2 cups (or more) all purpose flour
• Yellow cornmeal (for baking sheet)
• 6 tablespoons olive oil, divided
• 2 cups fresh shelled green peas (from 2 1/2 pounds peas in pod)
• 4 teaspoons water
• 6 cups thinly sliced onions
• 6 ounces sliced prosciutto, torn into strips
• 3 cups (packed) grated Gruyère cheese
• 3 cups coarsely chopped pea sprouts