For the love of cookies, these sticks are super good. Another recipe from my husband's late grandmother that we like to make from time to time in this house. I believe you can subs lemon to lime or even orange, but lime is not that common to be used in baking in Hungary.
Step 1: Ingredients and Method
500 g AP flour
250 g butter
250 g icing sugar
1 envelope vanilla sugar (or vanilla powder, or vanilla essence, if you cannot find vanilla sugar)
1 tsp grated lemon skin
100 ml milk
200 g dark cooking chocolate
Mix flour and butter until crumbly, then add in icing sugar, yolks, plus vanilla sugar. Lastly, mix in grated lemon skin, and knead dough to a nice ball.
Step 2: Topping
Roll flat dough for about 5-6 mm and slice into sticks (as shown on picture).
Brush each stick with milk (you can brush once its rolled flat or slice, however, it will be wet to the touch to separate the sticks).
Bake at 350 F for 8-10 minutes, cool to room temperature, either on cookie rack or the baking pan.
Melt DCC either on microwave or double boiler, with a little milk. Pour chocolate into a bottle, or parchment paper, or piping bag (even sandwich bag), snip the corner and splatter nicely all over cooled cookies (as shown on picture)