Here is the recipe: Tortillas De Harina (Flour tortillas)
6 Tbsp. Shortening
4 cups flour
2 tsp. salt
2 tsp baking powder
1 cup warm water or more as needed
Work shortening into flour, salt, and baking powder with fingers.
Work in the warm water and add more a spoonful at a time as needed until dough comes away from bowl.
Seperate the dough into balls. Then roll out on floured surface with floured rolling pin.
Heat heavy iron skillet or griddle very hot.
Keep iron greased, cook on both sides.