Growing up, Lemon Coolers were my favorite store-bought cookie (dad's was/is Nutter Butters, mom's is Oreos). These are DANG close - the lemonade mix is genius. I like them pucker-worthy, so I add some of the lemonade powder to the batter, and replace some of the water with lemon extract.
Healthy mocha dark chocolate brownies fresh out of the oven! (used a can of pured black beans instead of egg and oil!) so yummy and youd never know the difference. I added some dark chocolate chips and a couple tablespoons of instant coffee for some fun.