This recipe is from the hard working crew at Americas Test Kitchen, the place where they make all the mistakes for you and every recipe turns out amazing. So thank you guys and gals! The search for the perfect chocolate crinkle cookie is over! I just happened to have a jar of unopened espresso powder on hand and it is just the thing. The cocoa plus the chocolate bar bring wonderful depths to this little cookie that looks like it should be an asteroid zooming through space. Enjoy!
Preheat oven to 325 degrees. Line baking sheets with parchment. The last 2 ingredients, the white and powdered sugar will each go in its own bowl for rolling the cookies in before they bake. Do it now and you can set it aside.
Whisk together the flour, cocoa, baking powder, baking soda and salt in a bowl.
Whisk the brown sugar, eggs, espresso powder and vanilla in another large bowl. Combine the chopped chocolate and butter in a microwave safe bowl and microwave at 50 percent powder for 2-3 minutes, stirring occasionally, until melted.
Whisk the chocolate mixture into the egg mixture, blending them together in holy matrimony. Fold in the flour until there are no streaks of dry remaining. Let the dough sit at room temp for 10 minutes to soak up the atmosphere and get used to its oneness with the universe. (Its getting late, I'm may be getting a little goofy. Forgive).
Now, the oven is hot, your sugars are in their bowls and you have the cookie dough sitting there poised for action. Your hands are clean, yes? Now take a small ball of dough, not too small, perhaps a heaping tablespoon, and roll it up gingerly. It will be a tad sticky. If fact the first time I made them, I chilled the dough for 10 minutes or so. But it was all good even unchilled. I test baked a pair of cookies and they were perfect.
Take a ball of dough and roll it in the white granulated sugar. Once covered, roll in the powdered sugar, perhaps using a spoon to swish it about.
Lay the cookies on a cookie sheet. They do not spread much, but puff beautifully.
The directions say to bake 12 minutes, but their cookies were bigger than mine. You still want it to look a bit moist in the cracks and crevices. So about 10 and then check. They will be crinkly and cracked, soft and yet with a bit of crust on the outside. Perfect chocolate cookies! Cool right on the cookie sheet if you can or slide the parchment carefully on the cooling rack.