Pour 1 - 1 ½ beers in the pot (you can drink the rest).
Add water to cover all the brats by at least 1 inch.
Bring to a boil then immediately reduce to a simmer.
Continue at a very low simmer for about 20 minutes.
(After 20 minutes, I will often turn off the burner and leave the brats in the hot pot until I'm ready to grill. I don't leave them on there for more than 30 minutes though.) Have the grill ready to go and get them nice and crispy.
Notes
Put them on a bun or eat them plain, but serve them hot with mustard on the side. Serve with corn on the cob, watermelon and any of your other favorite summer staples.