We cut the peel and the grapefruit core, taking care not to put the bitter part.
For the sauce in a bowl plow the peel in half a lemon and drain 1 tablespoon of juice, add 100 grams of cream, 2 tablespoons powdered sugar & 80 grams of small nuts.
Mix everything well until the powdered sugar will melt.
We serve pumpkin salad on a platter with our cream & nuts.