INGREDIENTS
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Vanilla Cake
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1 cup butter
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1 ½ cup sugar
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2 eggs
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4 egg whites
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1 TB + 1 teaspoon vanilla
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3 1/3 cup flour
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1 teaspoon baking soda
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½ teaspoon baking powder
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1 teaspoon salt
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1 cup sour cream
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1/3 cup buttermilk
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White Chocolate Ganache
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1/3 cup white chocolate chips
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2-4 tablespoons heavy cream
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Blackberry Buttercream
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1 cup butter
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4 cups powdered sugar
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1 tablespoon milk
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4 tablespoons blackberry puree
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Blackberry Orange Sauce:
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1 cup fresh or frozen blackberry puree
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1/8 cup water
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½ cup orange juice
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¼ cup + 2 tablespoons sugar
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1 ½ tablespoons cornstarch
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1/8 cup cold water
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pinch cinnamon