For the recipe you will need:
flour – 250g
sugar – 250g
nuts – 200g
chocolate – 200g
egg – 2 pcs.
butter – 250g
For filling:

nutella – to taste
for decoration:

powdered sugar – 100g.
To make Nutella Chocolate Chip Cookies:

Chop chilled butter finely. Also finely chop the nuts. Grate chocolate. Mix flour, sugar, chocolate and nuts. Add lightly beaten eggs to the flour mixture and mix thoroughly. Then add chopped butter and knead the dough well. Wrap the dough in cling film and refrigerate for 2 hours.

Roll out the chilled dough into a 0.5 cm thick layer and cut out small circles. Place cookies on a baking sheet lined with baking paper, spaced apart.

Send the cookies to the preheated oven and bake at 180C for about 10 minutes. Then put on a wire rack and cool. Grease cookies on one side with Nutella and connect in pairs. Dilute powdered sugar 2-3 tbsp. water and grease the cookies with the prepared icing.