it was late, and I needed it

You know when you are sitting on your couch late at night binge-watchin some TV show (most likely Netflix) and all of a sudden, you get the mad munchies. Like not the kind like stoners have, but the kind where it's late at night and you just need a midnight snack. Those kind of munchies.
I craved something sweet, like dessert but small, like a cookie.
I put the two together at 11PM at night and saw this creation via the Internet and made it.

Red Velvet Cookie in a Mug
1 tablespoon butter
1 tablespoon sugar
1 tablespoon sugar
3 drops of Vanilla Extract
Pinch of salt
1 egg yolk
2 tablespoons of flour
2 tablespoons of red velvet cake mix

Place butter in mug and microwave it until melted. Add brown sugar, sugar, vanilla and salt and mix well. Add egg yolk to the sugar mixture, mix well. Add flour and cake mix and mix until fully incorporated. Place in microwave for 1 minute. Eat at night and if you do, slap on some cream cheese because, why not.