Grape Nuts Cereal

4 pounds brown sugar
8 pounds whole wheat flour
1 1/4 tablespoons salt
3/4 pound margarine, melted
1 1/2 teaspoons maple flavor
2 tablespoons vanilla extract
2 tablespoons baking soda
2 1/2 quarts buttermilk or sour milk

Preheat oven to 350 degrees F.

Put dry ingredients in bowl. Add milk, margarine and flavorings. Mix well. You may need to add a little more milk (the dough should be fairly thick). Put into pans and spread evenly. Bake until done.