For the finger golaches, cream the butter in a large bowl until fluffy. gradually add the sugar and continue to stir until the sugar has dissolved. Beat in the egg yolks one at a time.
Sift in the flour and mix the dough until smooth. Form small balls from the dough with your hands, place them on a baking tray and press small depressions into each ball with your finger.
Fill these depressions with a little jam. Bake the cookies in a preheated oven at 180 °C for about 12 minutes. Allow the finished finger golaches to cool on a cooling rack and store in a tightly sealed tin until ready to eat.