Sweat the shallots in 1 1/2 tablespoons butter until translucent, add the stock, cream and Gorgonzola, dissolve while stirring and reduce by a third.
Roast breadcrumbs and almonds in 6 tablespoons of hot butter.
Salt and pepper the fillet and briefly sear it in hot oil and place in a mold, brush with the almond mixture and bake in a preheated oven at 180 ° for approx. 15 minutes.
Thicken the sauce with 1 tablespoon of mixed cornstarch. Season with nutmeg and pepper and serve with the fillet.