Brutti ma buoni

I have got idea to make brutti ma buoni from Emilio Cugnetto. I have little bit changed his recipe.
Brutti ma buoni means "Ugly but good". In my opinion those cookies are adorable! I love their taste. Very good to eat them with cafe latte or cappucino.

Ingredients:

250 gram. of walnuts
200 gram. of any of your favourite nuts (for example hazelnuts, pistachios)
1 cup of icing sugar
5 eggs