1. Heat the oven to 180C/160C fan/gas 4. Line a large baking tray with baking parchment. In a bowl, beat the butter and sugar together until soft and creamy. Add the flour, a pinch of salt, the Dr. Oetker Madagascan Vanilla Extract and Dr. Oetker Milk Chocolate Chunks, then stir until the mixture forms a firm dough.
2. Turn the dough onto a lightly floured surface and knead gently until smooth. Roll it out to a thickness of 1cm, then using a 6cm round cutter, stamp out 15 rounds, re-rolling as necessary. Arrange on the baking tray, spaced slightly apart, then prick the tops with a fork and chill for 30 mins.
3. Once chilled, bake for 15-18 mins until lightly golden. Allow to cool for 5 mins then transfer to a wire rack to cool completely before enjoying.