Sift the whole wheat flour. Mix in the butter and salt until the flour starts to form very small balls about the size of peas. Add next to the flour the water and oil. Mix until the dough no longer clinges to the sides of the bowl. Remove a small piece of flour and knead dough gently on a breadboard or other flat non-stick surface. Add a small amount of flour to the dough ball, flatten it with your hands, then roll the dough thin. Turn over the thin dough and roll it again to make it as thin as you can. Perforate thin dough with a fork. Bake for roughly 8 minutes at 400 degrees Fahrenheit (200 degrees Celsius).
What is leavening?
Leavening is an substance that causes fermentation and expansion of food products. It produces gas, air, or steam that, when heated, expands and makes certain foods lighter tasting.
Common leavening agents include Yeast, Baking Soda (but only when it is used with a food acid) and Baking Powder. Some substances, however, thought to be a leavening agent (for the purpose of keeping the Days of Unleavened Bread) but are not include Cream of Tartar, Brewer's Yeast and Yeast Extract.