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If you’re looking for a cozy, satisfying dinner that’s packed with flavor and easy to pull together, these Oven Braised Beer Brats with Caramelized Onions check all the boxes. We’re talking juicy bratwurst sausages slow-cooked in the oven with tender, sweet onions and a splash of beer. It’s rich, savory, and the kind of dish that fills your kitchen with the best kind of smells.
Whether you’re hosting a game day gathering or just want to switch up your dinner routine, this recipe delivers big-time comfort with minimal effort.
Simple Ingredients, Big Flavor
This dish may sound fancy, but it’s made with everyday ingredients and comes together in just one pan. The bratwursts soak up flavor from the beer and beef broth, while the onions caramelize into a sweet, jammy topping that tastes incredible piled onto each bite.
The best part? It’s all done in the oven—no need to babysit a skillet on the stove for hours.
Frequently Asked Questions
What kind of beer should I use?
A lighter beer like a pilsner or lager works best. It gives the brats a subtle malty flavor without overpowering the onions. If you’re not a beer fan, you can also use beef broth or a non-alcoholic beer.
Can I use a different kind of sausage?
Sure! This method works well with other sausages too, like Italian sausage or even a good chicken sausage. Just keep in mind that cooking times may vary slightly.
How should I serve them?
These are great on their own with a side of mashed potatoes or roasted veggies. You can also pop them into a soft hoagie roll, spoon those caramelized onions right on top, and drizzle with mustard for a brat sandwich that rivals anything from the fair.
Can I make this ahead of time?
Yes! You can cook everything ahead and reheat in a skillet or the oven before serving. The flavors actually deepen a bit as it sits.
Ingredients You’ll Need
Here’s everything you need for this simple one-pan wonder:
- 6 bratwurst sausages – Use your favorite brand or grab some fresh from the butcher.
- 2 large yellow onions – Thinly sliced for the best caramelization.
- 2 cloves garlic – Minced for flavor depth.
- 1 tbsp olive oil + 2 tbsp butter – For sautéing the onions.
- 12 oz beer – A pilsner or lager is perfect.
- 1 cup beef broth – Adds richness to the braising liquid.
- 1 tbsp Dijon mustard – A little tang goes a long way.
- Salt & black pepper – Season to taste.
- Fresh parsley – Optional for garnish, but adds a pop of color.

How to Make Oven Braised Beer Brats with Caramelized Onions
Step 1: Preheat the oven
Set your oven to 350°F so it’s ready to go when the brats are prepped.
Step 2: Caramelize the onions
In a large oven-safe skillet or Dutch oven, heat the olive oil and butter over medium heat. Add the sliced onions and cook slowly, stirring often, until they’re soft and golden—this takes about 20–25 minutes, but it’s worth the time!
Step 3: Add garlic and brats
Stir in the garlic and cook for a minute or two until fragrant. Nestle the bratwursts into the onions.
Step 4: Pour in the liquids
Pour in the beer and beef broth until the brats are mostly covered. Stir in the Dijon mustard and season with salt and pepper to your liking.
Step 5: Bake
Bring everything to a light simmer on the stove, then transfer the skillet to your preheated oven. Bake uncovered for about 30–40 minutes, or until the brats are fully cooked and have soaked up all that amazing flavor.
Step 6: Serve it up
Spoon the onions over the brats and garnish with a little fresh parsley if you like. Serve hot!
Oven Braised Beer Brats with Caramelized Onions Recipe
Ingredients
- 6 bratwurst sausages
- 2 large yellow onions thinly sliced
- 2 garlic cloves minced
- 1 tbsp olive oil
- 2 tbsp unsalted butter
- 12 oz beer pilsner or lager
- 1 cup beef broth
- 1 tbsp Dijon mustard
- Salt and black pepper to taste
- Fresh parsley optional, for garnish
Instructions
- Preheat oven to 350°F.
- In a large oven-safe skillet or Dutch oven, heat olive oil and butter over medium heat.
- Add onions and cook for 20–25 minutes, stirring occasionally, until golden and soft.
- Stir in garlic and cook for another 2 minutes.
- Nestle the brats among the onions. Pour in beer and beef broth.
- Stir in Dijon mustard. Season with salt and pepper.
- Bring to a light simmer, then transfer the skillet to the oven.
- Bake uncovered for 30–40 minutes, until the brats are cooked through and infused with flavor.
- Serve warm with the onions spooned over top.
Notes
- No beer? No problem. Use all beef broth instead.
- Make it spicy: Add a pinch of crushed red pepper or a few dashes of hot sauce.
- Switch the onions: Red onions bring a sharper bite, while sweet onions will mellow things out even more.
- Serving idea: Serve on buns with sauerkraut and mustard, or slice them up and pile over mashed potatoes.
This Oven Braised Beer Brats recipe is a must-try for anyone who loves bold, savory meals without a ton of fuss. The combination of beer, onions, and juicy brats is pure comfort food, and the oven does most of the heavy lifting. Simple, hearty, and full of flavor—just the way dinner should be.
So Good!