By Food & WinePerfect for a St. Patrick's Day celebration, this fantastic slow cooker corned beef and vegetables can be refrigerated in the cooking liquid overnight and reheated gently. More St. Patrick's Day RecipesSlow Cooker Corned Beef with Cabbage, Carrots and PotatoesINGREDIENTSOne 6 1/2-pound corned beef6 heads of garlic10 cups water6 medium carrots, peeled6 medium red potatoes, halvedOne 2-pound head of green cabbage, cut into 6 wedgesMustard and horseradish, for servingDIRECTIONS1. Put the corned beef in a large slow cooker. ...