Pork Tenderloin With Plum Ketchup
["1 lb. purple plums (about 5), pitted and cut into chunks", "1 sm. onion, quartered", "2 cloves garlic, peeled", "2 Tbsp. finely chopped peeled fresh ginger", "1 c. dark brown sugar", "1/2 c. cider vinegar", "1/2 tsp. cinnamon", "1/2 tsp. salt", "1/4 tsp. pepper flakes"]
["In processor, process plums, onion, garlic and ginger until finely chopped.", "In saucepan, combine plum mixture, sugar, vinegar, cinnamon, salt and pepper flakes.", "Simmer, uncovered, stirring occasionally, 30 minutes, until thickened (about 2 cups). Remove to bowl; let cool."]
["purple", "onion", "garlic", "fresh ginger", "brown sugar", "cider vinegar", "cinnamon", "salt", "pepper flakes"]