If you wish to precook your bratwurst before grilling or pan-frying them, you can boil them in either beer or water. Boiling the bratwurst will cook the inside through and allow you to cook the outside to a perfect finish, as raw bratwurst would burn on the outside before cooking all the way through if prepared on a grill or skillet. Adding a few extra ingredients to the boiling liquid will infuse the bratwurst with flavor and make for an even better eating experience.
Pour 3 cans of beer or 36 oz. of water into a large soup pot. Add one sliced onion and four chopped garlic cloves.
Bring the mixture to a boil and add 1 lb. of bratwurst that have been pierced with a fork to prevent splitting. When the mixture comes back to a boil, reduce the heat to low.
Allow the bratwursts to simmer for 20 minutes. Drain them before cooking using your preferred method.
Raw onions, sauerkraut, pickles and fresh tomatoes are all excellent toppings for bratwurst.