Good ole fashioned beer brat but with a twist. I've found that a sour beer or gose gives them an extremely tangy/tart taste. Some good sausages from a local shop is best. Soak overnight in the sour beer, drink one or two for yourself as well. Prior to grilling, pour the beer, brats and some more beer (cheap/normal beer is fine for boiling but throw in a can of sour beer too) into a stock pot, add onions, bell peppers and boil for about 5-10 min or so. Drink a beer for yourself. You want to boil them to a point of where you could eat them out of the pot. Set the grill to med to med-high, throw the onions and peppers on a grill try and get those going. Grill the brats to your liking. Don't over grill because they are already boiled. Serve how you like; buns, by themselves with maybe some kraut or german potatoe salad. Do make sure to drink one of the sour beers along with dinner. If you don't like sour beer, skip drinking it but it does wonders for brats.