This is a delicate dish with fresh tender asparagus and creamy yolks of duck eggs. You can leave out the prosciutto for a vegeterain version.
Prep: 20 minutes plus 2-3 days marinating
Prep: 30 minutes
Cook: 1 litre
Prep: 20 minutes plus 1 1/2 hours resting of the pastry
Cook: 30 minutes