My mom’s chocolate mousse recipe:

200 gram PURE chocolade
50 gram butter
2 egg yellow
5 egg whites
75 gram cream
50 gram sugar

melt the chocolate and butter on a low fire.

Whip the cream.

Whip the yellows + 25gr sugar.

Whip the whites+ 25g sugar.

Take warm (but not too warm) chocolate, mix in yellows first, then cream, then carefully the whites.

Put in little cups 2 hours in the fridge.