My husband and I used to boil brats in beer in the house before grilling, but have discovered that this method keeps them juicier and keeps the house from smelling like a brewery! Living in Wisconsin, we make these often during the summer and also a few times during the winter, when it's much less convenient to grill! We've been making all our brats this way for the past two or three years. We normally buy the large three pound packages of Johnsonville brats early in the summer and stock the freezer when the price is right, but this will certainly work for any other brat as well! Our children, ages 4 and 5, prefer these to hot dogs hands-down, and will sometimes each devour two of them in one meal! We like to serve these with corn on the cob, foil potato packets, grilled zucchini, or any other vegetable we can grill while the brats simmer! This is listed as 12 servings because there are 12 brats, but most people enjoy at least two brats!