Milwaukee Beer-Braised Bratwurst with Caramelized Onions and Pretzel Buns
Traditional bratwurst braised in rich Milwaukee lager, topped with sweet caramelized onions, and served on soft pretzel buns for a hearty regional sandwich. This American-inspired sandwich and wrap recipe, ready in about 45 minutes, pairs bratwurst sausages, Milwaukee-style lager beer, yellow onion for a weeknight-friendly dinner that comes together with one pan and minimal cleanup. Each serving lands at about 480 calories and feeds 4, so it slots cleanly into a weekly meal plan and pairs well with a quick salad or grain on the side. Tap "Plan a meal with the AI" below to drop this recipe into your week and send the ingredients straight to Instacart. Nutrition values are approximate, calculated from USDA FoodData Central (fdc.nal.usda.gov) — verify against ingredient labels for any health-driven dietary plan.
Ingredients
- 4, about 4 oz each bratwurst sausages
- 12 oz Milwaukee-style lager beer
- 1 large, thinly sliced yellow onion
- 2 tbsp unsalted butter
- 1 tbsp brown sugar
- 1 tsp, divided salt
- 1/2 tsp, divided black pepper
- 4 pretzel buns
- 1/4 cup Dijon mustard
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Equipment for this recipe
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Instructions
- Step 1: In a large skillet over medium heat, melt 2 tbsp unsalted butter. Add 1 large thinly sliced yellow onion, 1 tbsp brown sugar, 1/2 tsp salt, and 1/4 tsp black pepper; cook for 15-20 minutes, stirring occasionally until onions are deeply golden and caramelized.
- Step 2: Meanwhile, place 4 bratwurst sausages in a large saucepan and pour 12 oz Milwaukee-style lager beer over them. Bring to a simmer over medium heat and cook, partially covered, for 15 minutes until sausages are cooked through.
- Step 3: Remove bratwurst from beer bath and place on a hot grill or skillet over medium-high heat to brown the casings for 3-4 minutes, turning frequently until edges are crispy.
- Step 4: Lightly toast 4 pretzel buns on the grill or in the oven. Spread 1 tbsp Dijon mustard inside each bun, place a bratwurst inside, and top generously with the caramelized onions.
- Step 5: Serve immediately for a robust Milwaukee regional favorite.









