You will also need parchment paper
Preparation
1. Preheat oven to 425°.
2. Heat oil in a skillet over medium-high heat. Add onion, rosemary, salt, and pepper; cook 20 minutes, stirring occasionally.
3. Roll dough out on a parchment paper-lined baking sheet. Sprinkle feta cheese in center, leaving a 1 ½ -inch border; top with onion. Sprinkle with fontina cheese.
4. Fold piecrust border up and over onion mixture, pleating as you go, leaving a 6-inch-wide opening.
5. Combine egg and 2 tablespoons water; brush over dough.
6. Bake at 425° for 25 minutes or until golden. Cool for 10 minutes.
Ingredients1 tablespoon olive oil
2 yellow onions, sliced
¼ cup chopped fresh rosemary
1 ½ teaspoons kosher salt
½ teaspoon black pepper
1 package refrigerated pie dough (such as Pillsbury)
they come with two pie crusts; either double the recipe or save one for next time
4 oz crumbled feta cheese
4 oz shredded fontina cheese
1 egg, lightly beaten