Wash and peel the asparagus and cut off the woody ends. Cook the asparagus in boiling, lightly salted water covered with sugar for 15-20 minutes
Wash the fillets, dab dry and season with pepper. Wrap with bacon. Fry in hot oil all around for about 15 minutes
Lift out the asparagus and drain. Measure 1/4 l asparagus stock and pour into a pot. Stir in sauce powder and bring to the boil. Add cream and Noilly Prat, bring to the boil again. Remove from the heat, beat 75-100 g butter into pieces. Season to taste with salt and pepper
Place the asparagus in a large greased casserole dish. Cut the fillets open and place them next to it. Pour sauce over them. Grate cheese over it. Gratinate in the preheated oven (electric cooker: 200 °C/circulating air: 175 °C/gas: level 3) for 15-18 minutes. Served with: new potatoes