For those days you just want to make one cookie... 1 tbsp. butter (melted), 1 tbsp. white sugar, 1 tbsp. brown sugar, 3 drops of vanilla, pinch of salt, 1 egg yolk, 1/4 c. flour, 2 tbsp. chocolate chips ... MICROWAVE 40-60 SEC IN A CUP OR BOWL. single serving deep dish chocolate chip cookie, YAY!!