Dinner · Part 2 of 3: Instructions
Slow Cooker Beer and Mustard Glazed Bratwurst Step-by-step instructions

- Prep
- Cook
- Total
- Serves
- 6
Before you start
Before beginning, ensure all ingredients are ready for assembly. Peel and slice the sweet onions into uniform half-moons, ensuring they are not too thin so they maintain texture during the long cook time.
Measure the amber beer and mustard accurately, and have the brown sugar ready to sprinkle. Clean the work surface and the slow cooker insert to prepare for the quick layering process, which should take no more than a few minutes before the slow cooker is switched on.
Ingredients at a glance (5)
- 6 bratwurst links
- 2 cups sweet onions, sliced
- 2 tbsp brown sugar
- 1 cup amber beer
- 2 tbsp mustard
Instructions
Layering the ingredients
- Layering the ingredientsPlace the raw bratwurst links in the bottom of the slow cooker insert. Distribute the sliced sweet onions evenly over the top of the sausages.Look for The sausages should be arranged in an even layer to ensure consistent heat distribution during the cooking process.Tip Ensure the slow cooker insert is clean and dry before adding the ingredients to prevent any unwanted sticking.
At this stage, the slow cooker is filled with the raw bratwurst and the sliced onions. The arrangement should be orderly, providing a stable foundation for the liquid ingredients that will follow. Check that the onions are spread evenly across the surface of the sausages to ensure they steam properly once the lid is secured and the heat begins to circulate throughout the vessel.
Adding seasonings and liquid
- Adding seasonings and liquidSprinkle the brown sugar over the onions and sausages. In a separate glass measuring cup, whisk together the amber beer and mustard until combined, then pour this mixture over the contents of the slow cooker.Look for The liquid should partially submerge the sausages, allowing the beer and mustard flavors to penetrate the meat as it cooks.Tip Whisking the beer and mustard before pouring ensures the glaze is uniform and coats the sausages evenly.
The brown sugar has been sprinkled over the top, and the mixture of beer and mustard has been poured into the slow cooker. At this point, the liquid should be visible around the base of the sausages. Ensure that the mustard has been whisked thoroughly into the beer so that no lumps remain, creating a consistent glaze that will coat the meat and onions during the cooking process.
Slow cooking to completion
- Slow cooking to completionCover the slow cooker and cook on low for four hours. Once finished, ensure the internal temperature of the sausages reaches at least 160°F (71°C) before serving. Let the sausages rest for 5 minutes.Look for The sausages will be plump and the onions will be soft and translucent when the cooking process is complete.Safe temperature 160°F (71°C) internal temperature (ground meat)Tip Resist the urge to open the lid frequently, as this releases heat and moisture, which can extend the necessary cooking time.
The sausages have finished their slow cooking cycle. The aroma in the kitchen should be savory and slightly sweet, indicating the beer and mustard have reduced into a rich glaze.
Check the internal temperature of the sausages to confirm they have reached 160°F (71°C). Once verified, let the sausages rest for a few minutes before serving to allow the juices to redistribute for the best possible texture.
Common mistakes
A common mistake is using a heat setting that is too high, which can cause the sausages to split or become tough. Sticking to the low setting is crucial for maintaining the desired texture.
Another error is neglecting to measure the internal temperature, assuming the time alone guarantees safety; always check the temperature to ensure the meat is cooked through. Finally, overcrowding the slow cooker without enough liquid can result in uneven cooking, so ensure the beer and mustard mixture is distributed evenly.
How to tell it’s done
The bratwurst is done when the internal temperature reaches at least 160°F (71°C) throughout the thickest part of the link. The sausages should appear plump, firm to the touch, and have absorbed some of the liquid from the beer and mustard glaze.
The onions should be completely soft and look slightly caramelized from the interaction with the brown sugar and beer. Always use a reliable digital meat thermometer to confirm the safe internal temperature before removing them from the slow cooker.
- Ground meat: 160°F (71°C) in the thickest part
Up next · Part 3 of 3
2 variations · storage & make-ahead · 3 answers · printable card
Tips, FAQ & printable recipe (Part 3)← Back to the ingredients (Part 1)