Put 6 cups flour, 1 tbsp. salt and 2 tbsp. sugar in bowl. Proof 2 packages yeast in 1/2 cup water and 1 tsp. sugar. Add yeast mixture to bowl with 2 - 2 1/2 cups warm water (or enough water to make dough stiff enough to handle). Knead and let double.
Punch down and divide into 16 balls. Let stand for 10 minutes, then roll into 4 inch rounds. Place on ungreased sheet. Bake at 450 degrees for 6-8 minutes. As they cool, they will collapse. If they don't, press gently, when cool, slit one side and fill.