German Lager Bier Brats

Preheat an outdoor grill to medium-high heat. Slice onions into large sections and set aside. Place brats into a medium-sized pot. Add equal parts lager and cold water into the pot until your brats are completely submerged. Bring your mixture to a boil; then add onions, salt, pepper, Worcestershire sauce and butter. Once boil resumes, reduce temperature to a simmer. Let simmer for 15-20 minutes. Remove brats from mixture and brown each side on pre-heated grill. Serve on a fresh bun and garnish with stone-ground mustard, sauerkraut, onions, peppers and/or a pickle spear.