1 (15 oz.) box Raisin Bran
3 c. sugar
5 c. flour
5 tsp. baking soda
1 qt. buttermilk
1 c. cooking oil
4 eggs

Combine all ingredients in a large bowl which can be covered. Refrigerate and use as needed. This mixture will last up to 6 weeks. Bake at 425 degrees for 15-20 minutes in greased muffin tins.