Slow Cooker Bangers and Onions for an Easy Comfort Dinner Tips, FAQ & printable recipe

Tips for success

For an even richer and thicker gravy, you can create a quick cornstarch slurry. Mix one tablespoon of cornstarch with one tablespoon of cold water until smooth, then stir this mixture into the bubbling slow cooker liquid during the final thirty minutes of cooking.

Turn the slow cooker to high if it was on low, and leave the lid off for the last fifteen minutes. This allows the excess moisture to evaporate, transforming the savory beef broth and rendered sausage fats into a velvety, glossy sauce that coats the back of a spoon beautifully.

If you prefer a deeper, more caramelized color on your sausages, you can quickly sear them in a hot skillet with a splash of oil for two minutes per side before placing them in the slow cooker.

While this step is not strictly necessary—as the slow cooker will fully cook the sausages and infuse them with flavor—it adds an extra layer of savory depth and a more traditional browned appearance to the final dish. Be sure to scrape any browned bits from the skillet into the slow cooker to capture every drop of flavor.

Variations

• Herbed Onion Gravy: Add a teaspoon of dried thyme or rosemary to the beef broth before cooking to infuse the gravy with earthy, aromatic herbal notes.
• Spicy Sausage and Onions: Swap the traditional mild pork bangers for spicy Italian sausages or add a pinch of red pepper flakes to the broth for a warm, spicy kick.

Storage and make-ahead

Fridge

Store in an airtight container in the refrigerator for up to 3 to 4 days.

Freezer

Freeze in a freezer-safe container or heavy-duty bag for up to 2 to 3 months. Thaw in the fridge overnight.

Reheat

Reheat gently in a saucepan over medium-low heat on the stovetop, adding a splash of broth if the gravy is too thick.

Allow any leftover sausages and onions to cool to room temperature for no more than two hours to ensure food safety. Transfer the leftovers, along with all of the savory onion gravy, into an airtight glass or plastic container. Seal the container tightly and store it in the refrigerator. The flavors will continue to develop and meld overnight, making the leftovers taste even better the next day.

This recipe is incredibly make-ahead friendly. You can slice the onions and prep the sausages the night before, storing them in separate containers in the refrigerator. In the morning, simply layer the onions, sausages, and broth into the slow cooker insert and set the timer.

Alternatively, you can cook the entire dish a day in advance, store it in the fridge, and gently reheat it on the stovetop or in the slow cooker when you are ready to serve.

Serving ideas

The absolute classic way to serve these slow cooker bangers and onions is over a generous mound of creamy, buttery mashed potatoes. The rich onion gravy pools perfectly in the center of the potatoes, creating a comforting, pub-style meal.

For a complete dinner, pair the dish with a side of steamed sweet green peas or roasted root vegetables, which add a touch of color and sweetness that balances the savory, rich profile of the pork and caramelized onions.

For a different twist, you can also serve these savory sausages and onions stuffed inside crusty French rolls to make ultimate sausage hoagies. Top them with a slice of melted provolone or Swiss cheese for a satisfying lunch. A simple, crisp green salad tossed with a sharp vinaigrette also makes an excellent side dish, offering a refreshing, acidic contrast that cuts through the rich, comforting flavors of the slow-cooked meat and gravy.

Frequently asked questions

Recipe card

Slow Cooker Bangers and Onions for an Easy Comfort Dinner

Prep 10 minCook 8 hTotal 8 h 10 minServes 4

Ingredients

• 3 large yellow onions, sliced
• 8 thick pork sausages (bangers)
• 2 cups beef broth
• 2 tbsp chopped fresh flat-leaf parsley

Instructions

1. Place the sliced yellow onions into the bottom of the slow cooker insert, spreading them out into an even layer to create a protective bed for the sausages.
2. Arrange the raw pork sausages in a single layer directly on top of the sliced onions, ensuring they are evenly spaced.
3. Slowly pour the beef broth over the layered sausages and onions, allowing the liquid to settle around the ingredients at the bottom of the pot.
4. Cover the slow cooker with its lid and cook on low for 6 to 8 hours, or on high for 3 to 4 hours, until the pork sausages are fully cooked and reach an internal temperature of 160°F (71°C).
5. Turn off the slow cooker, remove the lid, and sprinkle the freshly chopped flat-leaf parsley over the glistening sausages and caramelized onions before serving.

Contains: gluten, celery

Estimated nutrition per serving

Calories

450

Protein

18.5 g

Carbohydrates

12 g

Fat

36 g

Fiber

1.5 g

Sugar

5.5 g

Sodium

980 mg

Automatic estimate from the ingredient list, not laboratory-verified.