INGREDIENTS
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1 Sirloin Steak Tip, 1 1/2 - 2 lbs
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1.5 Tbsp Dijon Mustard
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1 Tbsp Black Pepper, coarsely ground
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1 Medium Shallot, minced
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2 clove Garlic, minced
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0.5 tsp Kosher Salt
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1.5 cup Espresso Balsamic Vinegar
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1 Tbsp Spanish Arbequina EVOO