Tangy Lemon Cake
["1/2 c. margarine", "1 tsp. lemon extract", "1 tsp. vanilla extract", "1 1/4 c. sugar", "2 1/2 c. sifted cake flour", "1 1/2 tsp. baking powder", "1/2 tsp. salt", "1 1/3 c. buttermilk", "4 egg whites", "1/4 c. sugar"]
["Cream together margarine, lemon extract and vanilla extract. Blend in 1 1/4 cup sugar.", "Sift together flour, baking powder and salt.", "Add alternately with buttermilk, beating well after each addition.", "Beat egg whites until foamy.", "Gradually add 1/4 cup sugar, beating until stiff peaks form.", "Fold into batter.", "Pour into 2 greased 9-inch layer pans.", "Bake at 350\u00b0 for 30 minutes or until done.", "Cool 10 minutes; remove from pans.", "Fill and frost with a lemon 7-Minute Frosting."]
["margarine", "lemon extract", "vanilla extract", "sugar", "cake flour", "baking powder", "salt", "buttermilk", "egg whites", "sugar"]