Pork Tenderloin With Balsamic-Cranberry Sauce
["1 1/2 Tbsp. butter", "1 (8 to 10 oz.) pork tenderloin", "1/2 c. chopped onion", "1 Tbsp. chopped fresh rosemary", "1/2 c. canned low-salt chicken broth", "1/3 c. canned whole berry cranberry sauce", "1 Tbsp. balsamic vinegar"]
["Preheat oven to 450\u00b0. Melt 1/2 tablespoon butter in heavy large ovenproof skillet over medium-high heat. Sprinkle pork with salt and pepper. Sear pork on all sides, about 2 minutes. Place skillet with pork in oven. Roast pork until thermometer inserted into center registers 155\u00b0, about 10 minutes."]
["butter", "pork tenderloin", "onion", "rosemary", "chicken broth", "cranberry sauce", "balsamic vinegar"]