Here is the gold standard for cooking raw brats: the parboil-and-sear method. This is the technique used at every decent Oktoberfest and backyard cookout in Wisconsin, and it never fails. First, grab a large skillet or pot and add your brats. Cover them with a good amber beer—don’t use a light lager here, you want something with body like a Märzen or even a dark ale.
Add a whole sliced onion, a few cloves of garlic, and a generous pat of butter. This is not health food, and that’s exactly the point. Bring the liquid to a gentle simmer—not a rolling boil, just a happy little bubble. Let them swim in that fragrant bath for about 10 to 12 minutes. The beer tenderizes the meat, the onion adds sweetness, and the butter makes everything better.
Fun fact: This steam-bath tradition actually comes from German butchers who would pre-cook sausages to keep them from bursting on the grill. You are now a part of history. After the time is up, pull them out and pat them completely dry with a paper towel. Wet brats on a hot grill are a recipe for steaming, not searing—and we want that golden crust.