I'm confused, because when I click on the recipe, it gives an icing recipe that uses powdered sugar, corn syrup and milk. But in the midst of the blog, it gives a link to a royal icing with meringue powder. Which icing will harden up into a nice, shiny coat so that I can stack these cookies for travel? Also, can you flavor the icing, or is it purely 'for looks'? I don't have meringue powder, but I do have corn syrup, so if they are the same in terms of hardness, I'll use the recipe that comes with the cookie recipe. Hi Nel, Sorry for the confusion. Both icing recipes will work just fine and they both dry firm for stacking. I like the meringue powder one best, personally. You can definitely flavor the icing. I just made a batch with lemon oil, just a couple of drops. Have fun! ~MaryJane

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