Knead flour, butter, 100 g sugar, grated lemon peel and 2 egg yolks to a smooth dough. Form dough into a dumpling, wrap in foil and put in the fridge for about 1 hour. Halve the dough and roll out between two layers of baking paper about 3 mm thick. Cut out about 70 cookies with different star cutters (5-6 cm Ø). Place the cookies on 4 baking trays lined with baking paper. Bake the trays one after the other in a preheated oven (electric cooker: 200 °C/ convection oven: 175 °C/ gas: level 3) for approx. 9 minutes. Mix 3 tablespoons of sugar and cinnamon, sprinkle half of the cookies immediately after baking.
Let the cookies cool down on a cake rack. Soak gelatine in cold water. Warm the cream and dissolve the squeezed gelatine in it while stirring. Stir in advocaat. Leave the cream to cool in the fridge for approx. 20 minutes, stirring vigorously several times with a whisk in between. Spread the undecorated biscuits with the cream, place the cinnamon-sugar biscuits on top and press on a little
Waiting time approx. 80 minutes