Preheat oven to 350 degrees Fahrenheit.

Spread the hazelnuts on a baking sheet and toast in the oven for about 10 minutes, or until you start to smell them. Be careful not to let them burn.

Immediately remove from oven and spread on a clean kitchen towel. Wrap the four corners of the towel over the top and let sit for a few minutes – the steam will help loosen the nut skins. Roll the nuts around in the towel – most of the nuts will be skinless. Set aside.

Whisk eggs and sugar together until light and foamy.

In a separate bowl, sift together the flour, baking powder, clove, and cocoa. Stir dry ingredients into the egg/sugar mixture. Add the liquor and the nuts and mix to combine.

Drop by teaspoonfuls or tablespoonfuls onto greased, or Gefen Parchment lined, baking sheets, two inches apart.

Bake in preheated 350 degree Fahrenheit oven 10–15 minutes, or until lightly browned. Remove from oven and place on a rack to cool.

While the cookies are baking, make the glaze: combine the confectioner’s sugar and lemon juice in a small bowl and stir until smooth. Add a drop of water if the glaze is too thick.

While the cookies are still warm, drizzle each one with a small spoonful of glaze. Let cool.