There was no temperature listed, so I used 350. I baked 20 minutes and the cookies were a little soft, just like the description said. I used orange zest instead of lemon zest, and it was delicious. The cookies are not overwhelmingly sweet and they allow the citrus flavor to come through nicely.
My cookies didn't come looking as nice as yours, but they were tasty. Mine took on color as I guessed at the temperature to bake at.( I did 325 F) I wasn't sure how big around they were either. I will make again for sure.
Very easy and economical to make and they come out delicious have already made them 3 ti mes now its also a very easy and enjoyable recipe to make with children. Keep posting the Algerian recipes they are much appreciated, ma sha Allah.