For the vanilla pot pies, first prepare the yeast dough. Mix the soft butter with the remaining ingredients to make a smooth dough. Let the dough rise in a warm place for about 1 hour until it has doubled in volume.
Knead the dough again by hand, roll it out and cut out squares of about 4 x 4 cm.
For the filling, mix soft butter with yolks, powdered sugar, curd cheese, lemon zest and vanilla pudding powder until smooth. Mix in raisins if desired.
Place 1 tablespoon of filling in the center of each dough piece, folding the corners inward. Brush the vanilla pot pies with egg white and bake in the oven at 180 °C top/bottom heat for about 20 minutes.