Line a baking sheet with parchment paper or aluminum foil (for easier clean up) and place the brats so they are not touching.

Baked beer brats. Add the bratwurst to a large cast iron skillet or any other oven safe baking dish. Cover pan and place on a 400f degree grill. Preheat the oven to 425 degrees f.

Add beer to the pan, enough to cover the brats. Preheat grill to 400 degree f. Season with salt and pepper.

Cover your baking sheet with tin foil. Preheat your oven to 400°. Add any additional onion slices to the top of brats.

Make sure your oven rack is in the center position. Position the oven rack to the center of the oven. Bake for 10 minutes and then turn the brats.

Preheat oven to 400 degrees. Place the fresh brats on top of onion and. Preheat the oven to 400°f, and line a large, rimmed baking sheet with aluminum foil.

Poke the holes with a fork around the brats so the steam can escape the casing as. Slice the onion and combine with the beer in a saucepan. Bake for 10 minutes on the first side and 8 to 10 minutes on the second side.