Microwave butter in a mug until melted, 30 seconds to 1 minute. With a spoon, mix in sugars, vanilla extract and salt until well-combined. Mix in egg yolk until no traces of the yolk are seen. Mix in flour. Fold in chocolate chips.
Microwave on high for 40 seconds, or a maximum of 50 seconds. Serve warm (maybe even with a dollop of ice cream).
Enjoy!
Nutitrion
Serving Size: 1 grams
Reviews
Aaima Choudhary on 2026-08-16 (5 stars): SO GOOD
Yueran Sun on 2026-07-20 (5 stars): it was delicious!
the only suggestion i would give is that microwave it for a whole minute since mine was still kind of raw after 40 seconds
