Season the chicken breasts (with salt and pepper). Marinade them for 1h30 min in some cream. Remove the chicken breasts, make a cut along them and sprinkles with 100 g of powdered pistachio. Roll them in foil. Cook in a steamer (65°C/149°F in the centre). Let them rest.
Prepare the breadcrumb coating by mixing the breadcrumbs, 20 g of powdered pistachio and the parmesan, and the softened butter. Spread an even layer of the mixture between two sheets of greaseproof paper using a pastry roller. Set aside in the refrigerator. Cut the breadcrumb coating into 10 rectangles. Place them over the chicken breasts. Brown in a slow oven.
Glaze the carrots in the chicken stock. Drain the carrots. Reduce the chicken stock and add some browned butter.
Trim the chicken breasts, place them on heated plates. Arrange the carrots and jus, decorate with finely cut carrot slices. Sprinkle with ground pistachios.