Wash the potatoes thoroughly. Cook in boiling water for 20-25 minutes. Wash the herbs, dab dry, put some aside for garnishing, cut the rest into fine strips. Peel garlic and press it through a garlic press. Grate pecorino cheese finely, finely chop cashew nuts. Knead herbs, garlic, lemon peel, cheese, nuts and 60 g butter, season with salt
Wash the salmon, dab dry and season with salt and pepper. Heat oil in a coated pan, fry fillets on each side for 1-2 minutes. Place in an ovenproof dish. Spread the herb mixture on the fillets. Gratinate in a preheated oven (electric cooker: 225 °C/ convection oven: 200 °C/ gas: level 4) for 8-10 minutes
Drain the potatoes and rinse with cold water. Cut potatoes in half and drain. Melt 20 g butter in a pan. Swirl potatoes in it, season with salt. Serve salmon with the potatoes. Garnish with herbs set aside