1.Start by making the dough. Mix warm water, 2 cups of flour, sugar, yeast, and salt. Let it sit for 5 to 10 minutes until it doubles in size.
2.Add the remaining flour and oil to the mixture, then knead until you get a soft dough. Cover and rest while preparing for the filling.
3.Wash the spinach and dry it thoroughly, or you can use store-bought pre-washed spinach.
4.Chop the spinach and onion, then mix them with olive oil, sumac, lemon juice, salt, and black pepper.
5.On a clean, flat surface, place the dough and cut it in half.
6.Cover the other half for later use, then sprinkle flour and roll out the remaining half.
7.Use a round cutter to cut the dough into small circles. I used a 9-inch cutter roller for its speed, cutting the whole thing in seconds.
8.Fill each circle with a generous amount of spinach mixture.
9.Bake in a preheated oven at 450°F until golden, which typically takes about 8 to 10 minutes.
10.Take them out and brush with oil, then place them on a cooling rack.