Flour Tortilla Recipe.   
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Ingredients:
2 cups un-sifted bread flour
3 teaspoons baking powder
1 tsp salt
1/4 cup lard, chilled
3/4 cup warm water

Directions:
Mix the flour, salt, and baking powder in a bowl.  Add the lard and mix in with your fingers until you have completely crumbled it in.  Slowly add the warm water and mix with a large spoon.  Take the ball out and put on a "floured" board and knead 3-5 minutes-until elastic.  Store in a warm place inside an oiled, plastic bag for 1 hour.  Pinch off pieces of dough about the size of a golf ball (1 inch) and let rest 15 minutes.  Roll the balls into circles approximately 7 inches in size.  Cook on a HOT (450-degrees) griddle turning only once.  Remove to a basket lined with a cloth towel or put between a towel until cool.  After the tortillas have cooled completely, store them in a plastic bag. The best homemade tortillas by far!
Yield: 9-10 tortillas.

White Wings makes a tortilla flour mix ready to use. Yes, we admit that even "we" use it often. Requires: add water only. So when time is a constraint...have the flour mix handy.
Ingredients: enriched blenched flour (wheat flour, niacin, reduced iron, thiamine mononitrate, riboflavin, folic acid), partially hydrogenated soybean and/or cottonseed oil, corn syrup solids, salt, sodium caseinate (a milk derivative), sodium bicarbonate, monocalcium phosphate, sodium aluminum phosphate, mono & diglycerides. Contains no preservatives.