Jordanian Matabaqa.. Layered Onion Bread

Name: Jordanian Matabaqa.. Layered Onion Bread
Total time: 3 h 25 min
Yield: 20 servings
Ingredients: 3 cups all purpose flour; 1 teaspoon kosher salt; 1/2 teaspoon fennel seeds; 1 1/2 cups warm water you may need a little more or less; 1/4 cup extra-virgin olive oil; 1/2 cup extra-virgin olive oil plus a little more for your work surface.; 3 cups yellow onions finely chopped; 1 teaspoon kosher salt; 1/2 teaspoon ground allspice; 1 teaspoon ground turmeric