Boil the eggs to get real hard-boiled eggs & peel them.
Clean the beans, trim the beans & cut them once or twice.
Bring water w/ salt & savory to a boil.
Add the beans when boiling & cook for about 5 min.
Drain the beans & cool them in cold water until still warm.
Chop the spring onions.
Mix olive oil, balsamic vinegar & spring onions; add salt & pepper.
Mix w/ the beans.
Slice the cornichons lengthwise & add to the beans.
Drain the tuna roughly; some of the olive oil won’t do bad.
Add mayonnaise & salt & pepper.
Blend w/ a handheld electric blender like hell - until it’s a thickly creamy mess.
Drain the beans once more to dispose of too much liquid from cooking the beans as well as the olive oil-balsamic vinegar mix.
Add the tuna cream to the beans & mix all well.
Slice the hard-boiled eggs w/ an egg-slicer & add to the beans i. e. fold in carefully.
Serve at room temperature.