Don't want to make a whole batch of cookies because you want just one? Here is the recipe for you.
1 tbl. butter, melted
1 tbl. white sugar
1 tbl. brown sugar
3 drops of vanilla
pinch of salt
1 egg yolk
1/4 cu. flour
2 tbl. chocolate chips
Combine ingredients. Microwave for 40-60 seconds in a coffee mug or cup or a small bowl for a single serving.