Guinness, brown sugar and horseradish mustard combine in your slow cooker and flavor your corned beef. Slow Cooker Corned Beef & Guinness Reduction cooks on it's own during the day for an easy Saint Patrick's Day dinner you can come home too!
Cook 7-8 hours on low or 3-4 hours on high. Remove corned beef from slow cooker.
Transfer liquid to saucepot. In small bowl, combine flour and 3 Tbs. cold water until smooth and blended and stir into saucepot. Bring to a boil over medium-high heat. Reduce heat to low and simmer until slightly reduced and thickened, 5-7 minutes. Serve Guinness Reduction with corned beef.
Makes 6 servings.