Eggplant, zucchini and potatoes peeled and cut into small cubes. I have all the vegetables, so I throw, not defrosting.

In boiling water throw the potatoes after 10 minutes add to the pan the eggplant and zucchini, cook for 5 minutes, then add peeled and chopped tomatoes. Sprinkle with salt and cook for another 10 minutes. Then remove the pan from the heat and whisk the contents of the blender (you can drain the bowl of liquid for convenience and then return to the pot). Pour in the cream and bring again to a boil. All the soup is ready.