Combine dry ingredients in one bowl and mix well. Add egg, mix, add lemon juice and mix, then fold in honey until you get a sticky dough. It will be REALLY sticky and thick!
Use a piece of parchment paper to create a long roll of dough, roll it up, twist the ends to seal and put it in the fridge for a few hours, then slice the dough to create equal sized slices. (if you skip this step just ensure your dollops of dough are equal sized)
Line baking sheet with parchment, a silpat mat or spray with non stick spray. Place slices on top with space in between them. Ensure all are the same size so they bake at the same rate.
Bake in a preheated oven at 400 degrees for about 12 minutes or until the outer edges are firmer but the very middle is still a bit undercooked but not wet. This will create a really chewy german spice cookie.
Take out of oven, put pan on cooling rack, leave on sheet pan while you make the glaze so they can stiffen up.
If you want a glaze on your lebkuchen, heat on the stovetop sugar, powdered sugar and enough water to make the consistency you want. Thin is okay, it will still create a sweet glaze on top.
Put cookies on parchment paper or a cooling rack (that has been sprayed with non stick spray) with paper underneath and spoon glaze on so it won't stick to plate. Spoon on top to coat and allow to harden.
Video
Notes
Tips for baking lebkuchen cookies
I say over and over again to have parchment paper underneath dough and/or cookies this is because it is very sticky dough and you need to prevent them from sticking.
It is helpful to spray the inside of your measuring cup when measuring out the honey so you get all of it out. You can even spray your bowl a bit so it doesn't stick to that and you lose some of it in the process of mixing.
You can even spray your hands with non stick spray for an easier cleanup for yourself.
Do not store in the fridge. When keeping leftovers store in a freezer bag with the air sucked out on the counter.