Funfetti Cake
INGREDIENTS
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2 1/4 cups cake flour
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1 Tablespoon baking powder
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1/2 teaspoon salt
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1 1/4 cups buttermilk
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4 egg whites
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1 1/2 cups sugar
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2 teaspoons lemon zest
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1 stick butter, room temperature
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1 teaspoon lemon extract
•
3/4 cup rainbow
•
Marshmallow Buttercream (plus a teaspoon of lemon extract)
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