INGREDIENTS
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2 sweet onions, finely chopped
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2 smoked ham hocks
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4 cloves garlic, finely chopped
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3 (32 ounce) containers chicken broth
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3 (1 pound) packages collard greens, trimmed
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1/3 cup vinegar
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2 tablespoons white sugar
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1 1/2 teaspoons salt, or to taste
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3/4 teaspoon ground black pepper, or to taste