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Sweet-Potato Butter

This butter is delicious spread on warm Buttermilk Biscuits.

  • Yield: Makes 2 cups
Sweet-Potato Butter

Source: Martha Stewart Living, May 1996

Ingredients

  • 2 pounds sweet potatoes, (about 5)
  • 6 tablespoons unsalted butter
  • 1 medium shallot, peeled and thinly sliced
  • 1/4 cups cider vinegar
  • 1 1/2 teaspoons freshly grated ginger
  • 2 1/2 teaspoons dry mustard
  • 1/2 teaspoon cayenne pepper
  • 1/2 teaspoon salt
  • 1/8 teaspoon freshly ground black pepper

Directions

  1. Heat oven to 400 degrees. Prick sweet potatoes. Place on a baking sheet and cook until soft, about 40 minutes. Let cool.

  2. Peel sweet potatoes, cut into chunks, and set aside. Melt 2 tablespoons butter in an 8-inch skillet over medium heat. Reduce heat to medium low, and add shallots; cook, stirring occasionally, until caramelized, 6 to 8 minutes. Add vinegar; cook 2 minutes. Stir in ginger, mustard, cayenne, salt, and pepper. Cook over low heat 2 to 3 minutes.

  3. Place sweet potatoes in a food processor; add shallot mixture; process until smooth. Transfer mixture to a heavy saucepan. Over low heat, cook 1 hour, stirring often, until mixture takes on a deep, rich color. Cool completely.

  4. Transfer mixture to an electric mixer. Add remaining 4 tablespoons butter in small pieces; whip until fluffy. Serve.

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