This slow cooker vegan pea and 'ham' soup recipe is packed with surprisingly savoury flavours and aromas reminiscent of an old-fashioned pea and ham soup that is served in many cafes across Scotland and Britain, as well as being a traditional firm family favourite.
No special expensive ingredients are required to prepare this easy slow cooker vegan pea and 'ham' soup, instead just a few everyday veggie pantry ingredients 'green split peas, bicarbonate of soda, red split lentils, carrots, onion, garlic, bay leaf, salt and pepper, veggie stock, and a little sugar and oil. Oh and a few strips of optional vegan bacon but that's totally optional as the soup is incredibly flavourful on its own.
The vegan bacon for this vegan pea and 'ham' soup is optional as the soup is deliciously savoury and packed with pea and ham flavours without any more additions. However, the veggie bacon does add extra texture and interest and a little bit goes a long way. We used half a packet of This Isn't Bacon Rashers [120grams].
This Isn't Bacon Rashers isn't labelled gluten-free but it does not contain any gluten-ingredients. Rather the company claims that they can not label it gluten-free as it is produced in a factory where other gluten ingredients are handled.
Origin of pea and ham soup
Pea soup in some shape or form has been around for thousands of years with many cultures having their own traditional version.
In Britain, one traditional pea and ham soup was historically more commonly known as London Particular. This odd named soup is prepared with yellow or green split peas, bacon or ham hock, and possibly a few veggies such as carrots, celery, and onion.
The unusual name London Particular was given to the soup during the Victorian era [1837-1901] when London experienced such intense thick fogs due to the rise of factories causing air pollution. The thick London particular fog were also known as a pea soup fog, and a peasouper fog as it resembled the thick yellowish pea and ham soup!
Charles Dickens, the Victorian author of the novel Bleak House refers to the overpowering London particular fogs and the resemblance to the pea soup on offer within his book!
Fog everywhere. Fog up the river...fog down the river...fog on the Essex marshes...fog on the Kentish heights...fog creeping...fog lying...fog drooping...fog in the eyes and throats...fog cruelly pinching toes and fingers...a nether sky of fog,,,Charles Dickens, Bleak House 
Thankfully, London does not currently experience fogs of that calibre anymore! Also there are now tasty vegan pea and 'ham' soup recipes available that may resemble the colour and thickness of a crazy fog but are particularly incredibly tasty!
For more information about the origins of pea soup check out our old-fashioned pea soup recipe.
Vegan Pea and Ham Soup
Vegan pea and 'ham' soup obviously does not contain any ham, bacon, or other types of meat. Instead it is plant ingredients that provide the meaty, savoury flavours. Surprisingly, plants can do a wonderful job at replicating deep umami flavours.
This vegan pea and 'ham' soup recipe features green split peas, red split lentils, and bay leaf. This trio of ingredients work their magic in the slow cooker producing the tastiest pea and veggie 'ham' soup.
Diced carrots are added for sweetness as well as for their resemblance to little pieces of ham. Although I do like to offer my family a slice of cooked vegan bacon as a garnish, but it is not really necessary as the flavours of the pea soup is perfect on its own.
For extra texture and interest the vegan bacon can also be sliced and stirred through the finished soup.
The aromas of this vegan pea and 'ham' soup cooking away in the slow cooker will have you impatient for lunch or dinner, and will transport you to a wee cozy warm cafe feel. A chunk of crusty bread for dunking in the soup equals the perfect easy vegan lunch.
How to prepare slow cooker vegan pea and 'ham' soup
This vegan pea and 'ham' soup is a new family favourite and has to be tasted to be believed as its so utterly delicious. Prepare this soup for your meat-eater friends and family, they may even suspect that you used real ham!
First, cook the onions and garlic for 5 minutes.
Add the green split peas, carrots, red lentils, bay leaf, sugar, salt and pepper to the slow cooker.
Add the pre-cooked onions to the slow cooker.
Give it all a good stir.
Pour in the hot vegetable stock.
Switch the slow cooker to the high setting and cook for 4 ½-5 hours.
Optional: Serve with slices of cooked vegan bacon or chop the bacon into pieces and stir through the cooked soup. A drizzle of vegan pouring cream is a nice addition.
Storage and reheating
Vegan pea and 'ham' soup will keep fresh for 3 days, within a covered container, and stored in the refrigerator. Or freeze for 3-4 months.
This pea soup will thicken as it sits but will thin out as it reheats. To stretch the leftover soup into more portions stir through a little plant milk before reheating.
Reheat on the stove-top until piping hot, or use a microwave. Alternatively, pour the soup back into the slow cooker, set the heat to high and leave until piping hot throughout.
Yes. If you have yellow split peas at home instead of green split peas then go ahead and use the yellow peas.
Absolutely. Happily peas are gluten-free, but do use a gluten-free vegetable stock or broth. Bicarbonate of soda is naturally gluten-free so is safe to use. The other ingredient that needs consideration is the vegan bacon, if using, so do check the ingredients.
Pea soup and more pea soup! Peas glorious peas!
For more pea soup recipes try our tasty yellow split pea and fennel seed soup which is easily prepared using a slow cooker, or our stove-top old-fashioned pea soup recipe.
For a traditional British side dish check out our traditional mushy peas recipe and this tasty British broad bean and pea rice pilaf.
Dried peas are incredibly budget-friendly, store well in the food cupboard, yet are little powerhouses of plant-based nutrition providing us with tons of slow-release energy, protein, fibre, vitamins, minerals and antioxidants.
So its worth adding peas to your diet whenever possible, which is what I am currently doing for my family during the cost of living crisis, hence all the new pea recipes!
Send us your recipe requests!
Would you like to see a vegan version of a particular meal, bake, or food? Do let us know and I will aim to recreate it within my Scottish family kitchen. We love trying new dishes so will love the challenge! Pop us a comment below with any requests. Thanks so much, Jacq, x
Vegan Pea and 'Ham' Soup
- 3.5 litre [3.6-4 quart] slow cooker [or larger]
- small skillet/fry pan [for sauteing onions]
- bowl [for soaking peas]
Pre-soak the evening before cooking:
- 250 gram dried green split peas
- ¼ teaspoon bicarbonate of soda [baking soda]
To precook onions and garlic:
- 1 tablespoon rapeseed oil [or olive/vegan butter or your usual oil, etc]
- 150 gram onion [1 large diced]
- 4 large garlic cloves [minced or 1 tablespoon garlic puree/paste]
Add to slow cooker:
- 75 gram red split lentils [rinsed and drained]
- 140 gram carrots [1 large diced]
- 1 large bay leaf [or 2 small]
- ¼ teaspoon black pepper powder
- ½ teaspoon salt
- ½ teaspoon granulated sugar
- 1.5 litres vegetable stock [hot]
- 4 strips vegan bacon [cooked according to package instructions]
The evening before:
- Add the dried green split peas to a bowl along with the bicarbonate of soda. Cover with enough cold water to allow the peas to expand.250 gram dried green split peas, ¼ teaspoon bicarbonate of soda
The day of cooking:
- Drain the peas and give them a rinse.
- Heat the oil over a medium heat and cook the onions and garlic for 5 minutes. Stir frequently.1 tablespoon rapeseed oil, 150 gram onion, 4 large garlic cloves
- Add the onions and garlic to the slow cooker along with the green split peas, lentils, bay leaf, diced carrots, sugar, salt and black pepper.75 gram red split lentils, 140 gram carrots, 1 large bay leaf, ¼ teaspoon black pepper powder, ½ teaspoon salt, ½ teaspoon granulated sugar
- Pour in the hot vegetable stock, give it all a good stir, and set the heat to the high setting.1.5 litres vegetable stock
- Pop the lid on the cooker and leave for 4½-5 hours.
- Give the soup a good stir to mix through the cooked thick peas and lentils.Add extra salt and pepper to taste. Remove the bay leaf.[depending on your slow cooker and dried split peas your soup may be cooked just before the 4 ½ hour mark so if possible check and see. Although the soup will be fine until the 5 hour mark]
- Serve each bowl with a few chunks of cooked and sliced vegan bacon. Although this is optional as the soup is incredibly savoury on its own.4 strips vegan bacon
- Nutritional information is provided for guidance only and is not an exact calculation as ingredients can vary.
- Store leftover soup for 3 days within the refrigerator.
- Or freeze for 3-4 months.
- Leftover pea and 'ham' soup will continue to thicken as it sits, but will loosen up as it is reheated. But if preferred and to stretch the leftover soup into one or more portions stir through a little plant milk before reheating.
- Green split peas can be replaced with yellow split peas.
- For a gluten-free pea soup use a gluten-free veggie stock [broth].
Prepared this delicious vegan pea and 'ham' soup?
Do let us know how you got on with the recipe by leaving us a comment below.
All feedback very much appreciated.
Snapped a photo of your pea soup to share on social media?
Tag us in using #traditionalplantbasedcooking or @traditionalplantbasedcooking
So we can admire your great cooking.
Take care, Jacq x
Mr Duncan MacFadyen
what about a vegan scorch broth please?
Great question! Love a nice simple veggie Scotch broth with a chunk of bread for dunking. We have a vegan Scotch broth recipe already on the family blog. Thanks! x