@ The Brats must simmer at least 1 hour and up to 3 hours
@ Place the onion in a large stock pot or Crockpot, add beer and butter. Bring to a boil, and then reduce heat to a simmer.
@ Meanwhile grill the brats until they split slightly. Remove from grill and allow to stand for 30 minutes. Add cooled brats to beer mixture. Simmer for 1 to 3 hours.
@ Keep brats in the pot until serving to prevent from shriveling up. Serve on buns with mustard, top with cooked onions.
Menu: Stop by deli for sauerkraut and German potato salad before serving these fabulous brats.