Butter Nut Pound Cake
["3 Tbsp. vanilla, butter and nut flavoring", "3 eggs, separate, beat whites", "3 c. plain flour", "2 c. sugar", "1/2 lb. margarine", "1 c. buttermilk", "1 tsp. soda", "1/4 tsp. salt"]
["Cream margarine and sugar.", "Mix soda and salt in buttermilk. Add flour and other ingredients.", "Fold in egg whites.", "Bake at 350\u00b0 for 1 hour."]
["vanilla", "eggs", "flour", "sugar", "margarine", "buttermilk", "soda", "salt"]