INGREDIENTS
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1 whole (6-pound) beef tenderloin, trimmed of visible fat and silver skin
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1/2 cup red wine
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1 1/2 tablespoons fresh juice from 1 to 2 lemons, divided
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3 tablespoons olive oil, divided
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3 medium cloves garlic, minced (about 1 tablespoon)
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1 teaspoon dried oregano
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1/2 teaspoon dried thyme
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4 teaspoons fresh dill, divided use
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Kosher salt and freshly ground black pepper
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1/2 cup homemade or store-bought low-sodium beef or chicken stock
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2 tablespoons butter
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For the Herb-Horseradish Cream:
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1 1/2 cups sour cream
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2 teaspoons prepared horseradish
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2 tablespoons minced fresh flat-leaf parsley
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2 teaspoons minced fresh mint leaves