Triple Cheese French Onion Flatbread Recipe
Prep Time:
15 minutes
Cook Time:
45 minutes
Servings:
4 Servings
Ingredients
  • 4 tablespoons olive oil, divided, plus more for brushing
  • 3 large yellow onions, sliced with a mandoline
  • 1 teaspoon salt, divided
  • 1 ½ cups flour, plus more for dusting
  • ½ cup hot water
  • 1 cup shredded Gruyère
  • 1 cup fresh mozzarella, sliced
  • ½ cup shredded parmesan
  • 2 tablespoons fresh thyme leaves
  • ¼ teaspoon cracked black pepper
Directions
  1. Heat 2 tablespoons of olive oil in a large skillet over medium heat.
  2. Add the sliced onions and cook until softened, about 5 minutes.
  3. Turn the heat to low and add ½ teaspoon salt. Cook until caramelized, adding oil if needed, about 30-40 minutes.
  4. In the meantime, make your flatbread crust. Preheat the oven to 475 F.
  5. Add the flour and ½ teaspoon salt to a food processor and pulse to combine.
  6. Add the remaining 2 tablespoons of olive oil and the hot water and pulse until a ball of dough forms.
  7. Transfer the dough to a lightly-floured surface and knead it until soft and smooth.
  8. Roll the dough into an oval about ⅛-inch thick.
  9. Transfer the crust to a baking sheet, prick it with a fork, then brush it with a thin layer of olive oil.
  10. Bake the crust until crispy and golden brown, about 15 minutes.
  11. Top the crust with the cheeses, caramelized onions, thyme, and black pepper.
  12. Bake the flatbread until melty, about 10 minutes, then slice and serve.