This recipe is from Shirley McNevich's Mom's Best Recipes Vol 4. Published here with her permission.
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(by Shirley McNevich)
1 box Duncan Hines white cake mix
1 1/3 cups water
3 egg whites
2 TBSP vegetable or canola oil
2 tsp. McCormick imitation butter flavoring
1 tsp. vanilla
In a mixer add cake mix, egg whites and water--beat. Add oil, butter flavoring and vanilla--beat until mixed, then beat for 2 minutes. Pour batter 2/3 full into muffin tins lined with cupcake liners. Bake at 350 degrees for 25 minutes or until inserted toothpick comes out clean. Cool completely, then frost as desired.
 
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