Microwave chocolate chip cookie

In a microwave safe mug, melt the butter then add the sugar and vanilla and mix well.

Mix in the flour and add milk (or water), mixing well till all combined.

Stir through the chocolate chips and add a couple to the top.

Microwave on high for 1-2 minutes depending on your microwave and how cooked you want your cookie to be. Check at 30 second intervals.