Ingredients:
500g tomatoes, finely chopped
100g lettuce, finely shredded
225g onions, finely chopped
2l beef stock (or dissolve 2 beef stock cubes in 2l hot water)
1 tbsp fresh marjoram, chopped
salt and freshly-ground black pepper, to taste
natural yoghurt, to serve
Method:
Combine the tomatoes, lettuce shreds and onions in a saucepan. Pour over the beef stock and add the marjoram. Bring the mixture to a boil, reduce to a simmer, cover and cook for 30 minutes.
Take off the heat and allow to cool slightly then purée in a blender or food processor until smooth.
Turn the puréed soup into a clean pan and allow to re-heat. Ladle into warmed soup bowls and serve garnished with a spoonful of yoghurt.