The best way to cook uncooked brats indoors is to simmer them in a broth then pan fry them. This method is not only the quickest way to cook the brats, but you can also add more gourmet flavor by cooking them in flavored liquids like beer, apple cider or ginger ale. The flavor in the liquid can be further amplified by the addition of herbs like rosemary and fresh thyme. This method is an easy dinner idea and has the added benefit of easy clean up. See my post on How to Pan Fry Bratwurst for more ideas. Pan Fry: For the best results, pan fry bratwurst slowly over a medium-low heat to ensure that it is cooked completely. A fail proof approach is to cover the pan and poach the bratwurst first in some liquid like water, beer, or apple cider for about 20 minutes on medium heat or lower. If using beer, the best choice of beer is your favorite brand and flavor since the whole brat will be infused with this flavor. See my Beer Bratwurst recipe for more details. Once the internal temperature reaches 145°F, fry the juicy brats with a little oil on medium-high heat, flipping often until the outside is perfectly crisp and charred. Higher temperatures help the bratwurst to sear and turn a golden brown color. The bratwurst is completely cooked when the internal link temperature reads 160°F. Oven/Broiler: Preheat oven to 400°F. Cover a baking sheet with aluminum foil. Grease the baking sheet so that the brats do not stick while cooking. Place the bratwurst on the baking sheet so that they are spread out evenly and do not touch each other. Transfer into the preheated oven. Bake for 10 minutes, then flip them over. Bake for another 5 minutes. Turn on the broiler and broil. Turn the brats using tongs - broiling each side for about 2 minutes each until suitably browned. Baste the bratwurst with oil as needed. The bratwurst is done when they are browned to taste and the internal temperature registers 160°F.