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Slow Cooker Sausages with Onions and BBQ Sauce

Slow cooker sausages in a wonderful BBQ sauce with mustard & onions is a wonderfully sweet & sticky dish that will please young and old alike.

It’s a dish that takes a couple of hours in the slow cooker, but apart from browning some sausages and onions, it is a really low-maintenance and easy recipe!

Overhead slow cooker pork sausages in a mustard and BBQ sauce.

Crockpot BBQ Pork Sausages

I swear I practically grew up on sausages, whether it was sausage sandwiches for or indeed the full English breakfast or sausages and mash for dinner they were on our table at least 2 or 3 times a week!

My time living outside of the UK saw me dabble a lot with making homemade sausages like my Cumberland sausage with onion gravy recipe.

Since returning there has been an explosion of sausage recipes here with everything from a glorious sausage and mash pie to an Indian-influenced sausage curry and devilled sausages all making an appearance.

These slow cooker sausages are probably much more akin to something my Mom may have cooked for the younger sweet-toothed me.

It’s a wonderfully easy recipe, soften some onions, brown some sausages and chuck ’em in the slow cooker.

Then add some stock, Worcestershire sauce, BBQ sauce, and mustard. Throw on the lid and take a stroll for a couple of hours whilst you wait for dinner.

BBQ and mustard sauce gravy poured over slow cooker pork sausages.

Frequently Asked Questions

What sort of sausages should I use?

I use some honey and mustard pork sausages because they are a wonderful match to the sauce.

However, you could play around with different types of sausage, everything from beef and standard pork sausages to Italian sausages would work well.

I’d avoid anything that was loaded with paprika and anything with too much sage (Lincolnshire and Cumberland), but apart from that fill your boots.

Can I cook this for longer?

If you wish, but the sausages are perfectly cooked after a couple of hours. Going too far beyond that may dry them out.

Does the size of slow cooker matter?

For my recipes yes. If you cook this in a larger 6 litre slow cooker there is not enough sauce and the pot will dry out too much. If you are using a larger slow cooker double the recipe and freeze the leftovers.

What BBQ sauce do you use?

I’ve played around with lots of different types of BBQ sauce in this recipe and my favourite is Sweet Baby Rays (available in Sainsbury in the UK). It is quite sweet and I think it works really well in this recipe.

Close up slow cooker pork sausages in a mustard and BBQ sauce.

Serving Suggestions

My slow cooker sausages in BBQ sauce are served here with mashed potatoes because… well because sausages and mash!

But they are glorious with so many childhood favourites.

You could embrace the whole kitchen gadgetry and throw some French fries or chips in the air fryer.

Or you could go old school and make some chip chop style chips, crispy straw potatoes or even some air fryer chips. Add some peas on the side to double down on the sweetness and dinner is served.

If I am trying a little harder then I add some fried cheesy polenta chips.

Slow cooker pork sausages in a mustard and BBQ sauce served with mashed potato.

Equipment Used

I only mention brands of equipment if I think that they make a material difference to a recipe. But if you have any questions feel free to ask them in the comments section below the recipe.

  • Stovetop.
  • 28cm or 11″ frying pan or skillet.
  • 4 litre (4 quart) slow cooker.
  • Chopping board.
  • Kitchen knife.
  • Kitchen tongs, stirring and serving spoons.
  • Weighing scales and or measuring jug, cups and spoons.
Slow cooker pork sausages with onions and BBQ sauce served with mashed potato.
Yield: 2 Servings

Slow Cooker Sausages Recipe with Onions and BBQ Sauce

Prep Time: 10 minutes
Cook Time: 2 hours 45 minutes
Total Time: 2 hours 55 minutes

Honey and mustard pork sausages cooked in a slow cooker in a delicious and comforting onion, mustard and sweet BBQ sauce.


  • 400g (14oz) Pork Sausages
  • 200g (1 Large) Onion
  • 2 Tbsp Cooking Oil
  • 4 Garlic Cloves
  • 2 Tsp Flour
  • 250ml (1 Cup) Beef Stock
  • 150g (½ Cup) BBQ Sauce
  • 1 Tbsp English Mustard
  • 1 Tsp Worcestershire Sauce
  • Pinch of salt if required


  1. Cut the onion in half then peel it and cut it onto half-moon shapes around 1cm thick.
  2. Heat half of the oil in a 28cm or 11" frying pan or skillet over a medium heat and then cook the onions for 12-15 minutes until they start to become golden. Stir regularly to prevent them from burning.
  3. Peel the garlic cloves and slice them as thinly as you can, add them to the onions and cook for 1 more minute. Then transfer everything to a 4 litre (4 quart) slow cooker.
  4. Return the pan to a medium-high heat, add the remaining oil and then brown the sausages evenly on all sides. Transfer them to the slow cooker keeping the oil in the pan.
  5. Return the pan to a medium heat, add the flour and cook in the oil for 2-3 minutes, or until the flour becomes golden.
  6. Remove the pan from the heat and stir in the beef stock until everything is combined, then add the BBQ sauce, English mustard and Worcestershire sauce. Have a taste here and see if you need a pinch of salt.
  7. Pour the sauce over the sausages, add a lid and cook on low for 2-2½ hours, then serve.

Nutrition Information:



Serving Size:


Amount Per Serving: Calories: 907Total Fat: 63gSaturated Fat: 16gTrans Fat: 0gUnsaturated Fat: 42gCholesterol: 151mgSodium: 2562mgCarbohydrates: 50gFiber: 3gSugar: 33gProtein: 38g

Calorific details are provided by a third-party application and are to be used as indicative figures only.

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If you made this recipe, I'd love to see what you did and what I can do better, share a picture with me on Instagram and tag me @krumplibrian and tell me how it went!

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