Pickled Green Tomato Soup
The green pickled/fermented tomatoes are a Russian delicatessen but they are also quite common in Polish cuisine.
Pickled green tomatoes are available in the Russian grocery stores or on-line.
I make my own pickles during the summer time when the tomatoes season is at its peak, and it's much easier to find green ones. I will post the recipe in the short future, but till then if you want to make this soup be sure you buy the naturally fermented tomatoes in salt and water brine. Don't substitute them for sweet pickles, the soup wont taste the same.