INGREDIENTS
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1 box (18.25 oz.) white cake mix
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3 whole eggs
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1/3 cup vegetable oil
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1 cup buttermilk
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Red, blue, green and yellow food coloring
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2 (12 ounce) cans whipped vanilla frosting
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Assorted colors decorating gel tubes
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½ cup Skittles
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2 8-inch round cake pans