【Ingredients】(Serves 2) 300g beef tenderloin salt & pepper 2tbs Dijon mustard 15g unsalted butter 200ml dessert wine 15g beef stock 1-2 clusters of mushrooms (or 300-400g of any mushroom you like) 1 clove of garlic 30-50g nuts Prosciutto (enough to cover the meat) Puff Pastry (enough to cover the meat) 1 egg yolk + 1tsp water