4 white onions, cut into thin slices2 tablespoons each: butter, sugar4 slices pancetta or bacon, cut into small pieces3 tablespoons water2 tablespoons apple cider vinegar
Makes 8 servings.
Place the onion slices in a medium bowl; add water to cover. Set aside 30 minutes. Drain; pat onions dry.
Heat the butter in a large skillet over medium-high heat; stir in the sugar until melted, about 1 minute. Add the pancetta; cook, stirring, until crisp, 2-3 minutes. Stir in water and vinegar; add the onions. Lower to a simmer; cook, stirring often, until liquid evaporates and onions soften, about 50 minutes.
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Nutritional information per serving: 78 calories, 46 percent of calories from fat, 4 g fat, 2 g saturated fat, 11 mg cholesterol, 9 g carbohydrates, 2 g protein, 76 mg sodium, 1 g fiber.