Maple and Garlic Marinated Pork Tenderloin
Ingredients:
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1 small onion, chopped
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1 cup maple syrup
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2 tablespoons Dijon mustard
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6 cloves garlic, minced
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1 teaspoon horseradish
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1 teaspoon sesame oil
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freshly ground black pepper to taste
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1 ½ pounds pork tenderloin
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1 teaspoon olive oil, or as needed