1: Start by roast 125 g walnut kernels: put on a baking sheet and put in the oven at 300°F (150°C) for 10 minutes. Walnut should dry without coloring.
2: Let cool, then mix to get a powder.
3: In a food processor bowl, pour 125 g butter and 125 g icing sugar, start at low speed and kneed until homogeneous mixture.
4: Add 250 g flour, nuts powder and 1 egg, and continue to kneed until homogeneous mixture.
5: Make a kind of ball with the dough.
6: And put it between 2 plastic film sheets to make a kind of thick circle. Put in the fridge for at least 2 hours or a night, otherwise 30 minutes in the freezer. We do that because dough is very very soft at ambient temperature.
7: Preheat your oven at 360°F (180°C). Spread the dough, not too thin, on the working surface, and cut in circles...
10: Put in the oven and make cook for about 25 minutes, watch for color because short bread should not be too cooked otherwise they are dry. Let cool on a wire rack.
Remarks
You can make this recipe with almonds, hazelnut or other dry fruits of your choice