Best Recipe below from Spruce Eats and Marian B.
Fugazzeta is a variation of the popular Argentinian treat called fugazza, which is an onion-topped pizza that is very similar to Italian-style focaccia. Fugazzeta is a double-crusted version of fugazza, stuffed with cheese, and topped with the same sweet onions. Fugazzeta de verdura has all of this plus a layer of sautéed spinach and vegetables.

Ingredients

  • 1/4 cup milk
  • 2 teaspoons sugar
  • 2 1/2 teaspoons active dry yeast
  • 2 3/4 cups bread flour
  • 5 tablespoons olive oil, divided
  • 1 teaspoon fine salt
  • 3/4 cup water
  • 1 medium onion
  • 6 to 8 ounces mozzarella cheese, thinly sliced
  • 1/3 cup grated aged provolone cheese, optional
  • 1 teaspoon dried oregano
  • 1/4 cup grated Parmesan cheese

Steps to Make It

  1. Gather the ingredients.

    Ingredients for Fugazzeta
  2. In a small pot over medium heat, warm the milk to 100 to 105 F.

    Milk being heated
  3. Place warmed milk in a small bowl and stir the sugar into the milk. Sprinkle the yeast over the sugar milk mixture, and set aside for 5 to 10 minutes, until the mixture is bubbly.

    yeast over the sugar milk mixture
  4. Place the flour, 1 tablespoon olive oil, and salt in the bowl of a standing mixer and mix together briefly using the dough hook. Add the yeast/milk mixture and begin to knead, adding the water gradually. The mixture should come together as a soft, stretchy dough, pulling away from the sides of the bowl.

    Add a bit more flour if the mixture is too wet, and add a bit more water if the mixture seems dry, crumbly, or overly firm.

    Dough being mixed
  5. Knead for 5 to 10 minutes, until dough is smooth, soft, and elastic.

    Knead dough
  6. Oil a bowl with olive oil and place the dough in the bowl. Cover with plastic wrap and let the dough rise on the counter until doubled in size, about 1 hour.

    Oil a bowl and let dough rise
  7. While the dough is rising, peel and slice the onion into very thin strips. Place them in a bowl of cold salt water—using the 1 teaspoons salt and 3/4 cup water—and soak for 30 minutes. Drain onions well and dry them with paper towels.

    Onion sliced and draining on a paper towel
  8. Once the dough has risen, punch it down and divide dough into two pieces. Roll each half into a smooth ball.

    Dough divided into two balls
  9. Pour 3 tablespoons of olive oil into a 12-inch pizza pan or cast-iron skillet. Place one ball of dough in the middle of the pan and flatten gently with your fingers. Let dough relax for 10 minutes.

    Dough in pan
  10. Continue to flatten dough into the pan, flattening it and pushing it toward the sides of the pan, letting it relax in between until dough covers the bottom of the pan. Oil the counter and roll the other piece of dough into a 12-inch circle, letting it relax in between until it holds its shape.

    Dough in pan
  11. Preheat oven to 450 F. Place the slices of mozzarella cheese over the dough in the pan. Sprinkle the provolone over the mozzarella. Place the other round of dough over the cheese and seal the edges of the two dough circles together.

    Fill with cheese
  12. Top the pizza with the sliced onions. Drizzle a tablespoon of olive oil over the onions, and sprinkle with the dried oregano and some Parmesan cheese.

    Cover with cheese
  13. Place the fugazzeta in the oven. Bake for 20 to 25 minutes, or until the edges are golden brown and crispy. Brown the onions under the broiler for the last 3 minutes of cooking if desired.

    Baked fugazzeta
  14. Remove from the oven. Let cool for 5 to 10 minutes before cutting into slices to serve.

    Serve fugazzeta
    ———————————
    NOTAS EN ESPANOL MIAS…

     

    De por sí la #fugazzeta no le roba el lugar a nadie en la categoría del #foodporn 🤤
    Originada en #BuenosAires fue inventada por el pizzero argentino, hijo de genovés, Juan Banchero, en el barrio de #LaBoca (en algún momento entre 1893 y 1932) cuando se inauguró la pizzería #Banchero.⁠

    Inspirada en la “Fugazza”, derivada de la Focaccia italiana, ¡es una variante imperdible de la típica #pizzaargentina con masa gruesa, cebollas arriba y una ESCANDALOSA cantidad de mozzarella por dentro!⁠⁠