"Champagne in the cake?!..."
INGREDIENTS
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3 egg whites
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1 and 1/3 cup cups champagne
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1 (15.25-ounce) box white cake mix
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1/3 cup vegetable oil
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2 sticks unsalted butter (softened)
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4 and 1/2 cups confectioners' sugar
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2 teaspoons vanilla extract
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6 tablespoons champagne
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silver dragees (to garnish)