Prepare grill with coals at a medium, direct and even heat.
Put sliced onions, seasonings, butter, beer and Famous Dave’s Rich and Sassy all in a foil “bowl”, fold up and put directly over coals, cook about 30 minutes until onions are soft and a nice sauce is made.
Grill bratwurst on same grill until done.
Serve Bratwurst on a roll with BBQ onion beer sauce.
Also great as a cheeseburger, steak or pork chop topping!!!!