Do you have that craving for a warm, gooey, chocolate-chippy cookie right now? You know, the kind that comes right out of the oven, and when you pull it apart you can see the chocolate ooze out of it. The kind of cookie that slowly melts in your mouth?
First! Melt a tablespoon of butter in the mug of your choice.
Secondly, add one table spoon of white sugar, one table spoon of brown sugar, a pinch of salt, and a 'lil vanilla.
Add and egg yolk and mix it up with a fork until it is smooth.
Add 1/4 cup of flour.
Mix it until it looks like...well...cookie dough.
Add some chocolate chips, or white-chocolate chips, or butterscotch...whatever you heart desires.
Mix it again.
Microwave it for 40-50 seconds.
And wa-lah! You made a cookie in a mug. :)