Medallions Of Pork With Riesling Sauce
["1 (12 oz.) pork tenderloin, cut into 1-inch thick rounds", "all-purpose flour", "4 Tbsp. (1/2 stick) butter (unsalted)", "1 onion, thinly sliced", "3 garlic cloves, minced", "1/2 c. dry Riesling", "1/2 c. raisins", "3 Tbsp. balsamic vinegar or red wine vinegar", "1 Tbsp. drained green peppercorns", "1 1/2 tsp. minced fresh thyme or 1/2 tsp. dried", "1 1/2 tsp. minced fresh oregano or 1/2 tsp. dried", "1/2 stick chilled unsalted butter, cut into pieces", "1/4 c. pine nuts, toasted"]
["Season pork with salt and pepper.", "Coat in the flour; shake off excess.", "Melt 2 tablespoons butter in heavy skillet over medium-high heat.", "Add onion and garlic and saute until golden brown, about 5 minutes.", "Transfer to bowl.", "Melt remaining 2 tablespoons butter in same skillet over medium-high heat.", "Add pork and saute about 4 minutes per side.", "Transfer pork to plate. Add onion mixture, Riesling, raisins, vinegar, green peppercorns and herbs to same skillet and boil until sauce thickens, about 4 minutes.", "Add pork to skillet to heat through.", "Divide pork among plates.", "Add 1/4 cup butter to sauce in skillet and whisk just until melted.", "Mix in pine nuts.", "Spoon sauce over pork."]
["pork tenderloin", "flour", "butter", "onion", "garlic", "dry Riesling", "raisins", "balsamic vinegar", "thyme", "fresh oregano", "butter", "pine nuts"]