Top the dough with the onion mixture, then add your toppings. Blue cheese and halved Kalamata olives would work well with the onions.
Ingredients
1 tablespoon butter
1/4 cup olive oil
1 1/4 pounds onions, thinly sliced
1 tablespoon chopped fresh rosemary
1/2 teaspoon fine sea salt
3 tablespoons pine nuts, toasted
Directions
Melt butter with oil in heavy large skillet over medium-high heat. Add onions; sauté until tender, about 5 minutes. Reduce heat to low; mix in rosemary and salt. Sauté until onions are golden, about 30 minutes. Season with pepper. Cover and chill up to 3 days. Stir in pine nuts before using.
