INGREDIENTS
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2 pounds collard greens, rinsed
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1 tablespoon canola oil
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1 cup 1/4-inch diced salt pork
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1 cup diced onion
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1/4 teaspoon crushed red pepper flakes, optional
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1/2 teaspoon freshly cracked black pepper
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1 cup low-sodium chicken stock
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1/2 cup water
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1/3 cup white vinegar
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1 teaspoon hot pepper sauce, plus more for serving (recommended: Crystal)