"Bananas add moistness and sweetness, while buttermilk makes this cake tender. Delicious with Spiced Tropical Fruit Compote...."
INGREDIENTS
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2 1/2 cups unsifted cake flour
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2 teaspoons baking powder
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2 teaspoons baking soda
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2 teaspoons ground cinnamon
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1 teaspoon freshly grated nutmeg
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1/2 teaspoon ground allspice
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1/2 teaspoon ground ginger
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1/2 teaspoon ground cloves
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1/2 teaspoon salt
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2 tablespoons butter
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3 large egg whites
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1/4 teaspoon cream of tartar
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1 3/4 cups granulated sugar, divided
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1 cup mashed very ripe bananas, (2 large)
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1/4 cup canola oil
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1 tablespoon freshly grated orange zest
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1 1/2 teaspoons vanilla extract
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1 large egg yolk
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3/4 cup buttermilk
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Confectioners' sugar for dusting