INGREDIENTS
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5 pounds red and white table potatoes, cut into 1-inch pieces
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3 tablespoons olive oil
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2 teaspoons minced garlic
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1 1/2 teaspoons salt, divided
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3/4 teaspoon ground black pepper, divided
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1/4 cup butter
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1 large onion, chopped
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1 tablespoon balsamic vinegar
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Blue Cheese Dressing, recipe follows Blue Cheese Dressing: 3/4 cup mayonnaise
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1 (5-ounce) container crumbled blue cheese
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2 tablespoons sour cream
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1 1/2 teaspoons prepared horseradish
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1/2 teaspoon ground black pepper