Well we didn't get to ring in a new year with world peace, but I did make these buttery, chocolatey morsels that are so, so good. I didn't do much tinkering with Dorie Greenspan's world peace cookie recipe - it's Dorie Greenspan, after all - just made some adjustments based on what I had on hand. And it was a perfect way to break in my new KitchenAid stand mixer!
I couldn't find bittersweet baking chocolate at my grocery store, so I subbed in the unsweetened chocolate that I had in my pantry - which works fine as long as you chop up the chocolate pretty finely (biting into a large chunk of totally unsweetened chocolate is not the most pleasant experience).
I also didn't realize until I had started baking that I'd someone managed to run out of vanilla extract (I had like three bottles of it! I don't know where it all goes) - but I did have some chocolate whiskey on hand which I used instead, and it turned out nicely.
So, bottom line: if you are well-prepared/have an adequate grocery store, you can make these as is. But if you are a little bit of a mess, and have to make adjustments on the fly, these will still turn out pretty darn tasty.