Bratwurst, onions, and beer come together to create a dish that is both rustic and full of flavor. Oma’s Beer Braised Bratwurst is ideal for Oktoberfest gatherings, game day meals, or casual backyard cookouts. It is simple to prepare, requiring only a bit of chopping and one pot, and delivers tender sausages packed with rich flavor.

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In this recipe, bratwurst slowly cook with mustard, beer, and caramelized onions until they are juicy and infused with savory goodness. You can serve them directly from the pot for a casual family meal, or pair them with pretzels, sauerkraut, and cold beer for a festive spread.
I grew up eating sausages of all kinds, and this is hands-down one of my favorite preparations. The jus it makes is unbelievably good! Sometimes I dip my sausage on a bun into it, other times I reduce it more until it is jammy, so I can spread that goodness all over the sausage.

History
Beer braised brats trace their roots to Germany, where bratwurst have been a culinary staple since at least the 14th century. The tradition of simmering brats in beer before grilling or serving is believed to have gained popularity in the mid-20th century, particularly in Bavaria, where beer is central to the region’s culture and cuisine. German immigrants brought both bratwurst and beer-braising techniques to the United States, and by the 1950s, this method was a highlight of Oktoberfest celebrations and backyard cookouts in areas with strong German heritage, especially in the Midwest.
Ingredients
- Bratwurst sausages – You’ll need about 1 pound of sausages. You can use any kind of good-quality bratwurst, just ensure they’re not precooked.
- Yellow onions – Regular cooking onions are fine.
- Garlic cloves – Don’t be shy with the garlic, and don’t use jarlic; it has no flavor.
- Olive oil – The oil and the butter will help your onions cook down.
- Unsalted butter – You can also use salted butter, just adjust the seasoning at the end.
- Beer – I like using a good pilsner for this recipe, but a darker, stronger beer is also fine.
- Chicken broth – Use low or no sodium added broth to control the salt.
- German mustard – I like using a whole grain mustard, but any German mustard will do.
- Salt and black pepper
- Fresh parsley – Optional for garnish.

How To Make Oma’s Beer Braised Bratwurst
Scroll down for the full recipe card with exact measurements and printable instructions.
Preheat your oven to 375°F. Heat the olive oil and butter in a large oven-safe skillet or Dutch oven over medium heat. I recommend using an enameled cast iron Dutch oven because it distributes heat evenly and can move straight from the stove to the oven without extra cleanup.
Add the sliced onions and cook for 20 to 25 minutes, stirring occasionally, until they turn deeply golden and sweet. A flat-edged wooden spoon works best here because it is gentle on the enamel and scrapes up the flavorful browned bits from the bottom.

Stir in the minced garlic and cook for about 2 minutes until fragrant. A small silicone spatula is helpful here since it reaches into the corners of the pot and is heat-safe.
Place the bratwursts into the onion mixture so that they are partially submerged. Pour in the beer and chicken broth, then whisk in the mustard. A liquid measuring cup with a spout makes pouring the beer easy without splashing, while a small silicone whisk ensures the mustard blends smoothly into the liquid.

Season lightly with salt and freshly cracked black pepper. I prefer an adjustable pepper mill for freshly cracked pepper, which adds the perfect rustic texture.
Bring everything to a gentle simmer on the stovetop, then transfer the entire Dutch oven to the oven. Because it is oven safe, you do not need to transfer hot liquid or sausages to another dish.
Bake uncovered for 25 to 30 minutes until the brats are cooked through and infused with the beer and onion flavors. About halfway through cooking, give the onions a stir with your wooden spoon to keep them evenly cooked.

Once done, move the brats to a platter and cover with foil to keep them warm. Reduce the remaining liquid on the stovetop, uncovered, until it is either saucy for dipping or thick and jammy to spoon over the brats. Serve everything on a platter and garnish with fresh parsley if desired.

Chef Jenn’s Tips
- Pick a beer you enjoy drinking, since the flavor will come through in the dish.
- If you prefer spiciness, add a pinch of red pepper flakes while cooking the onions.
- For a deeper flavor, sear the brats in the pot for 2 to 3 minutes per side before braising.
- Leftover brats make delicious sandwiches the following day.
Make It a Meal
Beer braised brats pair wonderfully with soft pretzels and mustard for a Bavarian-style spread. For a more casual cookout, serve them alongside German potato salad, coleslaw, and grilled corn. Adding a fresh green salad helps balance the richness of the brats, and serving them with the same beer you used in the recipe ties everything together perfectly.

Storage
Store leftovers in an airtight container in the refrigerator for up to 3 days. Reheat gently in a skillet with a splash of broth to keep the sausages moist. You may also freeze them by cooling completely first, then placing them in a freezer-safe container or bag for up to 2 months. Thaw overnight in the fridge before reheating.

Oma’s Beer Braised Bratwurst
Equipment
Ingredients
- 6 bratwurst sausages
- 2 large yellow onions thinly sliced
- 2 garlic cloves minced
- 1 tablespoon olive oil
- 2 tablespoons unsalted butter
- 12 ounces beer pilsner or lager
- 1 cup chicken broth
- 1 tablespoon German mustard
- salt to taste
- black pepper
- fresh parsley optional for garnish
Instructions
- Preheat the oven to 375°F and heat the olive oil and butter in a Dutch oven over medium heat.
- Add the onions and cook for 20 to 25 minutes until caramelized, stirring with a wooden spoon. Add the garlic and cook for 2 minutes more.
- Place the brats into the onions. Pour in the beer and broth, then whisk in the mustard with a silicone whisk. Season lightly.
- Bring to a simmer, then bake uncovered for 25 to 30 minutes.
- Remove the brats and cover them with foil. Reduce the remaining liquid on the stovetop until it is either saucy or thickened.
- Serve hot with the caramelized onions and garnish with parsley if desired.
Notes
Chef Jenn’s Tips
- Pick a beer you enjoy drinking, since the flavor will come through in the dish.
- If you prefer spiciness, add a pinch of red pepper flakes while cooking the onions.
- For a deeper flavor, sear the brats in the pot for 2 to 3 minutes per side before braising.
- Leftover brats make delicious sandwiches the following day.
I SERVE WITH WHOLE GRAIN GERMAN MUSTARD AND SAUERKRAUT, ON A ROLE OR NOT.