1 (15 oz.) box Raisin Bran flake cereal
5 c. flour
3 c. sugar
5 tsp. baking soda
2 tsp. salt
4 eggs, beaten
1 qt. buttermilk
1 c. oil

Combine dry ingredients in very large mixing bowl. Add liquid ingredients and stir until well moistened. Store in covered container in refrigerator. Let set 3 days before using to fully develop flavor. Batter lasts 6 weeks. Grease muffin pans and fill 2/3 full with batter. Bake at 400 degrees for 12-15 minutes.