8 oz. bran
2 1/2 c. flour
1 1/2 c. sugar
2 tsp. baking soda
1 tsp. salt
2 eggs, beaten
2 c. buttermilk
1/2 c. oil
Raisins (optional)

Combine dry ingredients; add eggs, buttermilk and oil; stir together. Cover and store in refrigerator for up to 6 weeks. Take out as little or as much as you want to use for muffins. Bake 12 minutes at 400 degrees.