Name: Grilled Peppercorn and Garlic Pork Tenderloin with Herb Butter
Prep time: 5 min
Cook time: 25 min
Total time: 30 min
Yield: 5
Ingredients: 1/3 cup extra-virgin olive oil; 2 tablespoons red wine vinegar; 1 tablespoon black peppercorns; 1/2 teaspoon kosher salt; 1/4 teaspoon ground black pepper; 1 1/2 teaspoons Dijon mustard; 2 cloves garlic ( , minced); 1 1/2 pounds pork tenderloin; 1 large sweet onion (, peeled, cut into 8 (1/2-inch thick) slices); olive oil; salt and pepper; 2 tablespoons herb butter