Thanks Julia and Econlady! So I'm adding some different extracts and turning them into chocolate-chocolate chip cookies, by changing 1/2 cup of the flour it calls for, for cocoa powder. I know this will work, but with the wet, I want to add a half cup of coffee, as I know this helps to deepen and enhance the chocolate flavor. Econlady, I'll check out the baking science, it does sound very interesting. Julia, getting ready to download your app onto my phone. Thanks again ladies! By the way, adjusted my recipe to go up the 1-1/2 cups of flour. It's fun to me to mess around with ingredients, I usually have beginners luck, but not so much when I go to repeat, this time, I'm writing down every little thing I do and making adjustments!
You might want to make a coffee sludge using instant espresso powder and some hot water. This will create a very concentrated coffee flavor and won't alter the consistency of the dough as much as adding 1/2 cup of coffee. (Thanks for checking out my app!)