If you have ready-made buckwheat flour, then take it. I was grinding grits in a coffee grinder.
Mix wheat and buckwheat flour with baking powder.
Heat the butter slightly in the microwave. Whisk with salt and sugar.
Add the egg and whisk.
Mix the egg-butter and flour mixture. Mix well. Flour may need a little more, it should become soft and not stick to your hands.
Divide the dough in half, roll it into a “sausage”, flatten it to a thickness of about 7 mm. Cover with a film. Put it in the refrigerator for 30 minutes.
Walnuts are dried in a frying pan and crushed into crumbs with a rolling pin.
Remove the dough from the refrigerator, sprinkle generously with nuts and roll them out with a rolling pin so that they do not crumble.
With a sharp knife, cut the dough diagonally into tortillas. I got 22 pieces.
Transfer the cookie blanks to a baking sheet covered with baking paper.
We put it in a preheated oven. Bake the cookies until light golden brown at 190 degrees for 20 minutes.