Were you able to get clarification on this recipe Please let me know as I am anxious to make this cookie

We are contacting the author of the recipe and get clarification!

I tried to make crostoli as this was a cookie we made every year growing up in an Italian family However I must have done something wrong. The recipe calls for cup of sugar but it is not included in the directions when combining the ingretients please clarify add a cup of sugar or not