2 tablespoons vegetable oil
1 onion, peeled and chopped
2 leeks washed, trimmed and chopped
1 litre light vegetable stock
1 baking potato, peeled and cut into cubes
2 handfuls frozen peas

1. Heat the oil in a medium sized saucepan and fry the onion and leeks until soft. Step two: Add the stock and potato and bring to the boil. Simmer for 20 minutes.
   
   
2. Add the peas and bring back to the boil, then simmer for 5 minutes.
   
   
3. Cool slightly and blend with a food processor.
   
   
4. Season to taste and serve piping hot with bread.

You could also try…
- Using parsnip instead of potato.
- Making a simple stew by adding a tin of tomatoes and chickpeas.