Soak the porcini in 100 ml of lukewarm water. Peel shallots and garlic and cut into fine cubes. Heat the oil in an ovenproof pot or mould. Sauté the shallots and garlic cubes for about 4 minutes until translucent.
Add rice after 2 minutes. Pour mushrooms into a sieve, collect soaking water. Pour wine, soaking water and stock completely into the rice. Chop mushrooms coarsely and fold in. Close the pot tightly with a lid or foil and cook in the preheated oven (electric cooker: 175 °C/ convection oven: 150 °C/ gas: level 2) for 30-40 minutes.
Clean and wash the rocket, shake it dry and cut it roughly. Fold butter and parmesan into the rice and melt in a closed pot (approx. 2 minutes). Fold in the rocket and arrange on plates.