When you want a ooey-gooey choco chip cookie in the middle of the night this is what you need to do!!
Melt the butter slightly in a ramekin. Add sugar and vanilla and mix. Combine egg yolk. (make sure the butter is not too hot or you will have a scrambled egg in your bowl!)
Add flour and mix well. drop in the choco-chips, give it a final stir. Microwave it for 40-50 seconds. Let it cool slightly before you serve it with ice cream.
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