Mix the flour, milk, cream, egg yolks, sugar, and flavorings (vanilla, lemon zest, rum) well.
Carefully fold in the stiffly beaten egg whites.
Let the mixture rest for a while (e.g., 10 to 15 minutes).
Eine beschichtete Pfanne mit Butterschmalz einfetten und den Teig etwa 2 cm hoch eingießen.
Turn the dough over and tear it into small pieces.
To finish, add a little butter and sugar and allow to caramelize.
Arrange on a plate and dust with powdered sugar (or a mixture of powdered sugar and poppy seeds).