Mix flour with yogurt and leave in a warm place for 12 to 24 hours. Preheat oven to 200 degrees. Place soaked flour, salt, baking powder, and ¼ cup coconut oil in a food processor and process until well blended. Roll out to about 1/16-inch on a pastry cloth dusted with white flour to prevent sticking. Cut into 2-inch square with a knife. Place on an oiled cookie sheet. Brush with remaining ¼ cup of coconut oil and bake in oven (or a dehydrator) for several hours, or until completely dry and crisp. Store in an airtight container in the refrigerator.
From: Eat Fat, Lose Fat. If you have the time to make your own crackers, these will be superior to anything you can buy in the store, unfortunately, as of this writing, there is no brand of commercial crackers made with coconut oil.