Recipes

Slow Cooker Leek & Potato Soup

Prep time: 10 mins
Cooking time: 3 hrs
Total time: 3 hrs 10 mins
4 servings
Fibre source, Low salt, Low sugar
Gluten Free, Pescetarian, Vegetarian

There’s nothing quite like a bowl of creamy leek and potato soup to warm you through on a chilly autumn day. This slow-cooked version brings out the gentle sweetness of leeks and the earthy richness of potatoes. A touch of real butter adds flavour, while keeping the recipe light enough to stay heart-healthy and nourishing.

Slow cooker Leek and Potato Soup

Method

  1. In a frying pan, heat the butter and olive oil over a medium heat. Add the leeks and onion and cook for 5–6 minutes until softened, add the garlic for the last 2 minutes. Transfer to the slow cooker.
  2. Add the potatoes, bay leaf, and vegetable stock to the slow cooker. Stir to combine.
  3. Cover and cook on low for 4–6 hours (or high for 2–3 hours), until the potatoes are tender.
  4. Remove the bay leaf and stir in the milk. Blend using a hand blender until smooth (or leave slightly chunky if preferred).
  5. Taste and add black pepper if desired. Garnish with fresh parsley and serve.

    Ingredients

  • 2 tsp unsalted butter
  • 1 tbsp olive oil
  • 2 large leeks, trimmed, washed, and sliced
  • 1 onion, finely chopped
  • 2 garlic cloves, crushed
  • 500g potatoes, peeled and diced (preferably waxy like Charlotte or Desiree)
  • 500ml low-salt vegetable stock
  • 250ml skimmed milk
  • 1 bay leaf
  • Freshly ground black pepper, to taste
  • Small handful fresh parsley to serve, chopped

Follow us on social media

Follow us on Instagram for more weekly heart healthy recipes

Follow us

Recipes

Explore our collection of heart healthy recipes

Crispy Roasted Chickpeas

A guilt-free snack for when you’re craving something savoury.

35 minutes
Fibre source, High protein, Low salt, Low saturated fat, Low sugar
Dairy Free, Gluten Free, Vegan
Read more

Tofu Chocolate Mousse

A heart-healthy spin on a classic winter pudding.

1 hour 5 mins
Fibre source, High protein, Low salt, Low saturated fat
Dairy Free, Gluten Free, Vegan
Read more
Spiced Apple Crumble

Spiced Apple Crumble

A heart-healthy spin on a classic winter pudding.

35 mins
Fibre source, Low salt, Low saturated fat
Dairy Free, Pescetarian, Vegan, Vegetarian
Read more
Mulled Berry & Beetroot Warmer

Mulled Berry & Beetroot Warmer

A vibrant, heart-healthy spin on traditional mulled wine.

30 mins
Fibre source, Low salt, Low saturated fat, Low sugar
Dairy Free, Gluten Free, Pescetarian, Vegan, Vegetarian
Read more
All Recipes

More Healthy Tips

Discover ways to look after you heart

Healthy eating tips
Nutrition January 5, 2026

5 healthy eating tips you’ll wish you tried sooner

Our 5 healthy eating tips are simple, back-to-basics stuff that doesn’t require any special supplements or equipment.

Read more
Christmas exercise Healthy Tip
Physical Activity November 25, 2025

Why exercise at Christmas matters

Did you know that heart attack rates increase during the festive period? Join us as we delve into some of the benefits of exercise for heart health, offer some ideas to help you build sustainable movement routines and serve up a festive exercise challenge.

Read more
Healthy Tip November Plant based diets
Nutrition October 29, 2025

Do you need to go plant-based to be healthy?

We explain how simply adding more plants to your diet can bring big benefits for your heart and overall wellbeing.

Read more
Woman breaking cigarette in two
Smoking September 29, 2025

How quitting smoking boosts heart health

Three in four smokers wish they had never picked up their first cigarette. Stopping smoking is one of the best things you can do for your health.

Read more
All Health and Lifestyle Tips