INGREDIENTS
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1 3-rib prime rib roast
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4 tablespoons dijon mustard (I use Maille)
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3 tablespoons olive oil
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5 garlic cloves, chopped fine
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1 tablespoon kosher salt
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1 tablespoon freshly ground pepper
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1/4 cup chopped fresh herbs (I use rosemary, sage and thyme)
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1 cup sour cream
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1/4 cup prepared horseradish
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1 1/2 tablespoons dijon mustard
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1 teaspoon champagne vinegar
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1 teaspoon worcestershire sauce
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1/2 tablespoon fresh chopped chives
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salt and pepper to taste