Fresh Tomato soup

There are lots of tomato soups around, but this one is made with fresh tomatoes and is only about 60 calories a cup.  It also has lots of texture.  Makes about 2 litres.
Ingredients.
1 k of fresh tomatoes, quartered
2 cups of stock, I used chicken but vegetable , ( Brons veggie stock is good )or water and a couple of cubes.
3/4 cup of celery
1 cup onions, chopped
1 tablespoon of fresh basil
2 cloves of garlic
Sweetener of choice, brown sugar, or golden syrup, or honey or artificial sweetener, I used Xylitol.
Salt and pepper to taste
Yoghurt and extra basil to finish

Method
Place all ingredients into TMX bowl, except yogurt and extra basil.
Mix at speed 7 for 10 seconds.
Cook, speed 3 / 100 / 25 minutes.
Mix, speed 10 / 1 minute.
Taste and add sweetener to taste.

Notes
Can add carrot or lentils or roasted red peppers.
Chilli for extra kick.
I served with chopped fresh herbs and light sour cream.