Just wanted to let you ladies know my cookies turned out fabulous and were a big hit! The additions I made were wonderful, 12 minutes each batch and they came out perfect, all 4 half sheet pan fulls. I used a teaspoon of the espresso powder, made a slurry with it with a teaspoon of water and added an extra teaspoon of extract, a 1/2 teaspoon of cayenne pepper and an extra 1/2 teaspoon of salt. They were so perfect! Thanks for the advice on the espresso powder, my kitchen will never be out of it again! Julia, I bought your app for my android and I've loved all of it that I've read so far and the videos I've watched!