Put the flour, Ovaltine, sugar and vanilla sugar in a bowl and stir.
Add the butter in small pieces. Rub everything between your fingers quickly to form an even, crumbly mass. Add egg and coffee cream, mix all ingredients well.
Now knead the dough briefly, but only until it sticks together. He may need a little more fluid.
Be careful: if the dough is kneaded too long, it will be tough.
Chill the dough for 30 minutes, then roll out about 6 mm thin. Cut out biscuits with the Förmli.
Bake in the 180 ° C oven for about 8 minutes. Garnish the cooled Ovo biscuits with sugar icing, desiccated coconut, etc., if you like.