featured 23146

Slow Cooker Carrot & Coriander Soup: Simple Weeknight Recipe

This incredibly easy slow cooker carrot and coriander soup is a real weeknight winner. Far better than anything store-bought, this simple “dump and go” recipe requires minimal prep and delivers comforting, vibrant flavour every time.

3 bowls of slow cooker carrot and coriander soup, one of which set on a blue plate, all topped with croutons, soured cream and coriander. There's a sliced loaf of bread, pot of soured cream, pot of croutons, spoons and a light brown linen napkin in the background. Set on a cool grey wood effect backdrop.

If you love the classic honey carrot soup, you’ll find plenty to enjoy in this slow cooker version. I hadn’t used my slow cooker for a while, and this recipe reminded me why it’s perfect for low-effort midweek meals: chop, add, and switch on.

A carrot being chopped on a white chopping board with a pairing knife. There's lots of vegetable peelings and coriander scattered around, a light brown linen napkin, some stock pots and a plate filled with chopped carrot and onion. All set on a cool grey wood effect backdrop.

This is a true “dump and go” soup: no frying, no fuss. Just peel and chop the vegetables, add stock and spices, and let the slow cooker do the rest. The result is a silky, aromatic soup that makes a perfect starter, lunch, or warming mug on a chilly evening.

A bowl set on a blue plate over a light brown linen napkin, filled with carrot and coriander soup that's topped with croutons, soured cream and coriander. Set on a cool grey wood effect backdrop, there's also a spoon in the soup and a torn piece of bread on the side.

How to make slow cooker carrot and coriander soup – recipe summary

  1. Peel and chop the vegetables.
  2. Add onion, carrot, potato, vegetable stock, ground coriander, salt and pepper to the slow cooker.
  3. Cook on low for 6 hours.
  4. Blend until smooth.
  5. Stir in fresh coriander and adjust seasoning.
A bowl set on a blue plate over a light brown linen napkin, filled with carrot and coriander soup that's topped with croutons, soured cream and coriander. Set on a cool grey wood effect backdrop, there's also a spoon in the soup and a torn piece of bread on the side. Around the edge of the image is a sliced loaf of bread, a pot of croutons and some coriander.

Ingredients

Key ingredients for this recipe:

  • Onion – A medium brown onion, peeled and quartered or cut into eighths.
  • Carrots – Standard carrots, peeled and cut into roughly equal pieces (no need for specialty varieties).
  • Potato – One medium baking potato, peeled and chopped to help thicken the soup.
  • Vegetable Stock – About 1.5 litres; use your preferred cubes or prepared stock for the best flavour.
  • Ground Coriander – Adds depth to the coriander flavour and complements the fresh herb.
  • Salt & Pepper – Season to taste; adjust at the end.
  • Fresh Coriander – Stirred through at the end for brightness; include stems if you like the flavour they add.
A hand placing a piece of carrot in a slow cooker that's filled with carrots and onions. There's a white chopping board with carrot on it, some stock pots, spoons and a light brown linen napkin in the background. Set on a cool grey wood effect backdrop.

Recipe tips

Helpful tips to get the best results:

  • Choose fresh produce for the brightest flavour.
  • Cut vegetables to similar sizes for even cooking.
  • Season well with salt and pepper to enhance the ingredients.
  • Let the soup cool slightly before blending to avoid splatter; work in batches if using a blender.
  • Make extra and freeze individual portions for quick meals later.
A front view of a bowl of slow cooker carrot and coriander soup with a spoon inside, topped with croutons, soured cream and coriander. Set on a light brown linen napkin over a cool grey wood effect backdrop, there's also a sliced loaf of bread, a pot of croutsons and some books in the background.

Slow Cooker Carrot and Coriander Soup – Step by Step

(Printable recipe card available in the recipe block)

Ingredients (serves 4)

  • 1 medium onion (approx 140g | 5 oz), peeled and cut into eighths
  • 575g (20 oz) carrots, peeled and cut into 1″ pieces
  • 1 medium potato (approx 300g | 10.5 oz), peeled and cut into 1″ pieces
  • 1.5 litres vegetable stock
  • 1/2 tsp ground coriander
  • 1/4 tsp salt
  • 1/4 tsp pepper
  • 3 tbsp fresh coriander, chopped

Equipment

  • 3.5 litre slow cooker
  • Blender or stick blender

Method

Place the onion, carrots, potato, vegetable stock, ground coriander, salt and pepper into the slow cooker. Fit the lid and cook on low for 6 hours.

Raw ingredients for carrot and coriander soup in the bowl of a slow cooker on a kitchen worktop.

When cooked, the vegetables should be soft and fragrant. Allow the soup to cool slightly before blending. Blend in batches until completely smooth, or use a stick blender directly in the slow cooker.

Cooked and blended carrot soup in a slow cooker on a kitchen worktop with a wooden spoon in it.

Stir through the chopped fresh coriander and taste for seasoning. For the best flavour, chill the soup in the fridge for 24 hours to let the flavours meld; reheat until piping hot and serve with crusty bread.

A hand reaching in with a spoon over a bowl set on a blue plate over a light brown linen napkin, filled with carrot and coriander soup that's topped with croutons, soured cream and coriander. Set on a cool grey wood effect backdrop, there's also a spoon on the side and a torn piece of bread.

Storage

Cool completely, then refrigerate in a sealed container for up to 3 days. For longer storage, freeze in individual portions for up to 3 months—defrost thoroughly before reheating.

A carrot being chopped on a wooden chopping board set on a cool grey wood effect backdrop. There's also a light brown linen napkin, a slow cooker filled with vegetables and some vegetable peelings in the background.

Health benefits

This soup is low in fat, naturally dairy-free and suitable for vegans and gluten-free diets when using appropriate stock. It’s a nutritious, comforting option packed with vitamins and fibre from the vegetables.

A front view of a spoon filled with soup over a bowl of slow cooker carrot and coriander soup, topped with croutons, soured cream and coriander. Set on a light brown linen napkin over a cool grey wood effect backdrop, there's also a sliced loaf of bread, a pot of croutsons and some books in the background.

Variations

If you’re not using coriander, consider a mild herb like parsley for freshness, though the distinct flavour of coriander is what defines this soup. You can also add a splash of coconut milk for creaminess or a squeeze of lemon to brighten the flavour.

3 bowls of slow cooker carrot and coriander soup, one of which set on a blue plate, all topped with croutons, soured cream and coriander. There's a sliced loaf of bread, pot of soured cream, pot of croutons, spoons and a light brown linen napkin in the background. Set on a cool grey wood effect backdrop. A text overlay says

Enjoyed this recipe?

If you try this slow cooker carrot and coriander soup, I’d love to hear about it. Share your photos or feedback in the comments or tag the creator on social media.