Roasted Cauliflower and Leek Soup Recipe

Coconut, Lemongrass, Leek and Cauliflower Soup. British Leeks
  • 35 mins
  • Prep: 10 mins,
  • Cook: 25 mins
  • Yield: Serves 4
Ratings (6)

Leek and Potato soup is a classic of the British and Irish kitchen which is no surprise as it is an utterly delicious soup. But, sometimes a little change and tweak is a good thing especially when the potato is switched out for a hunk of delicious roasted cauliflower. Roasting the cauliflower, rather than straightforward steaming, adds an intense sweetness and a little nuttiness to the cauliflower. Then add to that lemongrass and a good glug of coconut milk and you have a classic soup meeting 21st century eclectic tastes head on. 

What You'll Need

  • 1 medium cauliflower – cut into florets, thick stalk removed
  • 6 tablespoon Extra Virgin olive oil
  • 1 medium onion - finely chopped
  • 3 leeks - washed and trimmed and chopped
  • 1 stick of lemongrass
  • A handful of fresh or frozen peas
  • 500ml veg stock
  • 150ml coconut milk
  • A large knob of butter 
  • A pinch of salt and pepper to taste
  • Small red chilli to garnish

How to Make It

Heat the oven to 200C/400F/Gas 6

Put the cauliflower florets into a large bowl, sprinkle over 5 tablespoons of olive oil and a little salt for flavour, shake well to make sure the cauliflower is coated in oil. Tip the florets onto baking sheet and roast in the heated oven for about 10 - 15  minutes. The cauliflower should be cooked and the edges roasted but not burned. 

While the cauliflower is roasting, heat the butter in a large pan with the remaining tablespoon of oil.

Add the chopped onion and cook until softened and translucent but not browned. Once soft, add the leeks and finally the cauliflower once roasted (keep a few pieces of roasted cauliflower for garnish – optional).

divide the lemongrass into three even-sized pieces, bash lightly with a heavy pan or rolling pin, your intention is to bruise it, not smash it to pieces, as bruising releases the scent and flavour. Lower the heat, cover and cook for a few minutes then add the peas, the stock and the coconut milk. 

Simmer for approximately 10 minutes then remove from the heat. Take out the lemongrass and blend to a smooth soup in either a food processor, a Thermomix or use a stick blender. 

Garnish with tiny bits of freshly chopped chilli and grind of black pepper.

Serve the soup with crusty, fresh bread or a few slices of lightly toasted sourdough.  

This soup will freeze very well, however, if you are going to do not add the chillies, then once you are reday to use, defrost the soup, heat it through and then garnish as usual.

This recipe is loosely based on a recipe from British Leeks in the UK.

Nutritional Guidelines (per serving)
Calories 785
Total Fat 76 g
Saturated Fat 40 g
Unsaturated Fat 29 g
Cholesterol 122 mg
Sodium 405 mg
Carbohydrates 24 g
Dietary Fiber 6 g
Protein 9 g
(The nutrition information on our recipes is calculated using an ingredient database and should be considered an estimate. Individual results may vary.)