Clean the emperors as described and cut them into pieces of about 3 cm. Put some olive oil in a wok, fry the mushrooms and the onions cut into thin strips and season with salt and pepper. When the onions are al dente, fill the whole thing with cream and bring to the boil. Don't be surprised, the sauce will...
Allow a piece of butter to soften at room temperature and keep lukewarm. Fry the small strips of the sliced Kaiserling in a pan with a little butter, not too strong. Pour the mushrooms with the liquid, when warm, over the butter, crush with a fork and refrigerate. Spread a slice of bread with the Kaiserling butter well.
Clean the Kaiserling as described, halve and cut into thin strips adapted to the shape. Put the large thin slices in a salad bowl. Pour the juice of the lemon over it, fold in some walnut oil, salt and pepper, mix vigorously and let it steep.
