INGREDIENTS
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Peanut oil, for frying
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4 cups all-purpose flour, plus more for dusting
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1 cup sugar
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1/2 cup unsweetened cocoa powder
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2 teaspoons baking powder
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1/2 teaspoon baking soda
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1/2 teaspoon salt
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1 cup sour cream
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1/2 cup milk
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2 large eggs
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2 (1-ounce) squares white chocolate
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4 tablespoons heavy whipping cream, divided
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2 (1-ounce) squares bittersweet chocolate
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2 tablespoons heavy whipping cream