INGREDIENTS
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For the donuts:
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2 1/4 cup (255 grams) cake flour
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1 1/2 teaspoons baking powder
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1 teaspoon salt
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1/2 teaspoon ground nutmeg
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1/2 cup sugar
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2 tablespoons butter, at room temperature
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2 large egg yolks
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3/4 cup sour cream
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Canola or vegetable oil, for frying
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For the glaze:
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3 cups powdered sugar, sifted
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1 1/2 teaspoons corn syrup
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1/2 teaspoon vanilla extract
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1/2 cup hot water