Wearing gloves, take the walnuts and cut off the edges. Then, using a (souvlaki) wooden skewer prick them on both sides.

Put them in a pot with plenty of water and boil for about 15 minutes. 

When they are boiled, wash them with cold water and put them in a bowl with cold water leaving them for 2 days, changing the water about 4-5 times a day.

Put the ingredients for the syrup in a pot and stir constantly so that the sugar doesn't stick. When it starts to boil, leave for 10 minutes.

When the syrup is ready place the 10 cloves in a muslin cloth and add them togehter with the walnuts.

Boil for 10 minutes and let it cool. 

Boil again on the next day, skim off the foam and let them cool once more. If they let out any foam during the night, skim it off.  

The next day, boil the sweet once more until the syrup thickens, remove the muslin cloth and add the lemon and the vanillins. Stir lightly and remove from fire. 

When it cools, store in jars.