Mary Berry's Tomato Soup Recipe Without Tomatoes

Mary Berry has been making recipes since the 1960s. She is a famous cook and has been on TV for a long time. One of her old recipes is very interesting.
In 1975, Mary wrote a recipe book with a tomato soup recipe that does not have tomatoes. It uses tomato juice instead.
Mary said this soup is quick to make and does not need cooking.
You can use homemade yogurt if you like. Mary said it is a grown-up taste that her kids did not like.
Mary shared this recipe in 1975.
Mary has not made this recipe again in her other books or TV shows.
The recipe book with this soup and other recipes is not sold in stores now, but you can find old copies online.
To make the soup, mix yogurt and tomato juice, then add lemon juice, cucumber, salt, pepper, and special sauce.
Serve the soup cold with cucumber on top. You can make it a day before and keep it in the fridge.