INGREDIENTS
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1 cup all-purpose flour
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1 teaspoon baking powder
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1/4 teaspoon baking soda
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1/4 teaspoon salt
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3 tablespoons toasted wheat germ
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1/4 cup chilled vegetable shortening
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1/3 cup buttermilk or plain yogurt
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1 large egg yolk
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10 frankfurters, ends trimmed and frankfurters halved crosswise