Heat the olive oil in a large, deep pan over a medium heat. Add the sliced leeks, and fry for 5 minutes, until soft.
Add the stock, cannellini beans, cashew nuts, frozen peas, watercress, horseradish, salt and pepper. Bring up to a simmer for 5 minutes.
Blend thoroughly to make a smooth, thick soup.
Notes
Serve swirled with a little extra creamed horseradish for an extra kick, or with a little yoghurt for children.
The texture of this soup is thick so it is easy for kids to eat, you could make it thinner with an extra 250ml of chicken stock.
Store in the fridge for up to 3 days or in the freezer for up to 3 months.
Per serving. Nutrition content in food is never consistent, so take these estimates with a pinch of salt! Also, our recipes tend to use low-GI carbs and sugars, so these values are not directly comparable with shop-bought UPFs.