INGREDIENTS
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1 package dry yeast (about 2 1/4 teaspoons)
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1 cup warm 2% reduced-fat milk (100° to 110°)
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3/4 cup canned mashed sweet potatoes
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3 tablespoons butter, melted and divided
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1 1/4 teaspoons salt
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2 large egg yolks, lightly beaten
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5 cups bread flour, divided
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Cooking spray