Make a pur of the tuna and the
salmon with a masher, then mix together the softened
butter, crumb whichi soaked into the milk squeezed,
yolk, some salt and pepper and a little quantity
of the tuna oil. Put the mixture in a mould lined
with aluminum foil and leave in the refrigerator
at least 3 hours. Take out from the mould and
garnish with mayonnaise and olives, then serve!