What you will need:
- 90g butter
- 75g caster sugar
- 2 1/2 teaspoons vanilla sugar
- 1 teaspoon baking powder
- 150g plain flour
- 1 egg yolk
- Combine the butter, sugar and vanilla sugar in a bowl and mix. Add the flour, baking powder and egg yolk and knead till a smooth dough forms.
- Roll out the dough on a floured surface. Cut out shapes and Place biscuits on a parchment-lined tray.
- Bake for 10 minutes until golden and cool on the tray.