Soak the boletus in warm water for about 30 minutes (the longer the better). Catch the soaking water and sift well.
Cut the zucchini into slices and fry them with the garlic slices in hot olive oil. Add the chilli, porcini mushrooms, tomato cubes and the rosemary and deglaze with a little soaking water of the porcini mushrooms.
Cook everything al dente, pour in the cream and add the thyme. Bring to the boil again and season with salt and pepper.