Purple Sweet Potato Whole Wheat Bun
Ingredients:
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2 ¼ cups bread flour
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1 ½ cups cooked and mashed purple sweet potatoes
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¾ cup whole wheat flour
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¾ cup cake flour
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2 eggs
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6 tablespoons brown sugar
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⅓ cup water, or more as needed
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5 ½ tablespoons butter, melted
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2 tablespoons milk powder
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2 ½ teaspoons instant dry yeast
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½ teaspoon salt