140g Hazelnuts (toasted, skinned or hazelnut flour)
140g Plain flour or rice flour
100g butter at room temperature
Combine all ingredients in blender and blitz it into a dough
Rest dough in fridge for 1 hour
Weigh into small pieces of 5g and roll into balls
Cook in preheated oven at 160 degrees C for 20 minutes
Once cooked, allow to cool on a wire rack.
Stick two halves together with melted dark chocolate.