Six Week Bran Muffins

Batter may be kept in the refrigerator for up to six weeks and baked fresh, as desired.
* BEGIN THE NIGHT BEFORE! *

15 oz. box raisin bran cereal (the 2 scoops kind!!)
2  1/2 cups sugar
5 cups flour
1/2 tsp salt
4 eggs, well beaten
1 cup vegetable oil
1 quart (4 cups) buttermilk

In a very large bowl, mix together cereal, sugar, flour, and salt.
In a separate bowl, mix together eggs, oil, and buttermilk.
Add wet ingredients to dry ingredients and mix until just blended.
Allow mixture to stand in the refrigerator overnight before using.
Fill muffin tins 2/3 full and bake at 350 for 20 minutes.