"A new take on pineapple upside-down cake. Here, a sticky brown-sugar caramel drips down the sides of a super-moist banana cake...."
INGREDIENTS
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Nonstick vegetable oil spray
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1/2 cup (1 stick) unsalted butter
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1 cup (packed) golden brown sugar
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3 tablespoons dark corn syrup
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3/4 cup walnut halves or pieces
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1 3/4 cups cake flour
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1 teaspoon baking powder
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3/4 teaspoon baking soda
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1/2 teaspoon salt
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1/2 cup (1 stick) unsalted butter, room temperature
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1/2 cup sugar
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1/2 cup (packed) golden brown sugar
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2 large eggs
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1 cup mashed very ripe bananas (2 to 3 large)
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3 tablespoons sour cream
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1 tablespoon dark rum
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1 teaspoon vanilla extract
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Whipped cream or vanilla ice cream