One method of cooking bratwurst we have seen has you actually steaming the brats in beer and then finishing on the grill. In our recipe we skip the initial steam bath and simply bathe the brats in beer while they are on the grill.
beer of your choice
toppings of your choice
Preheat grill to medium high
Remove brats from package and place on grill
Turn/roll occasionally allowing brats to gently brown
Bathe brats on grill with half of the beer about 10 minutes into the cook
When brats begin to split roll them split side up and pour more beer into the opening. Enjoy the aroma!
Cook for another 5 minutes or until internal temperature reaches 160F
Toast hoagie rolls lightly on grill while brats are finishing up