Brown Sugar Grapenuts

4 c. brown sugar
2 qts. sour milk
4 t. salt
4 t. baking soda
14 c. whole wheat flour
1/2 lb. butter, melted
4 t. vanilla
2 t. maple flavoring

Combine all ingredients and bake at 350 stirring every 15 minutes until golden brown. Crumble and dry.

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