Lebkuchen

In a medium saucepan, stir together the honey and molasses. Bring the mixture to a boil, remove from heat and stir in the brown sugar, lemon juice, lemon zest, and lastly the egg.
In a large bowl, stir together the flour, baking soda, cinnamon, cloves, allspice and nutmeg. Add the molasses mixture to the dry ingredients and mix well. Stir in the citron and hazelnuts. Cover dough and chill overnight.
Preheat oven to 350 degrees F. Grease cookie sheets. Using a small amount of dough at a time, roll out on a lightly floured surface to 1/4 inch thickness. Cut into small rectangles and place them 1 inch apart onto the prepared cookie sheet.
Bake for 10 to 12 minutes in the preheated oven, until no imprint remains when touched lightly.
Combine the sugar and water in a small saucepan. Heat to between 234 and 240 degrees F (soft ball stage). Remove from heat and stir in the confectioners' sugar.
Quickly brush the icing over the cookies while they are still hot (Important!) and remove them to wire cooling racks. If icing becomes sugary while brushing cookies, re-heat slightly- adding a little water until crystals dissolve.
Store in an airtight container with a cup of orange or apple for a few days to mellow. (I never did understand that part of the instructions, and my friend had no clarification - but I take it to mean store with a cut-up apple or orange - maybe a small cup of juice? I don't know - I just stored the cookies in an airtight container by themselves!).