Mix together & then let cool:
1 cup boiling water
1 cup All Bran

Meanwhile mix:
½ cup oil
1 ½ cup sugar
2 eggs
2 cups buttermilk or sour milk
(milk + 2 tbsp vinegar)
2 ½ cups flour
1 ½ tbsp soda
½ tbsp salt
2 cups bran flakes

Add All Bran mixture & raisins. Chill 1 day before using. Batter can be kept for up to 6 weeks. Bake 15-20 min @ 375. Butter pans well! Let cool 1 min before removing from pans.