Chocolate Chip Cookie Mug Cake is the ultimate quick treat! It's soft, warm, and packed with melty chocolate chips! Everything you love about a classic cookie, made in just minutes right in your microwave.
Add the butter to an 8-ounce microwave-safe mug and microwave for about 30 seconds, or until mostly melted.
Stir in the milk, brown sugar, vanilla and salt until combined.
Stir in the flour, baking powder and most of the chocolate chips until combined.
Sprinkle the top with the remaining chocolate chips. Microwave on high for 1 minute and 25 seconds.
Let cool for about 5 minutes before enjoying. I love this served with a scoop of vanilla ice cream!
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Notes
*I usually use 4 tablespoons (or 1/4 cup) of all-purpose flour for this mug cake, but if you prefer a moister texture, try 3 tablespoons instead—it still works beautifully! Just note that with less flour, the cake will be a bit smaller.**Please note that ALL microwaves are different therefore can yield different results and can overcook this mug cake if you aren’t careful. When trying this recipe for the first time, you might want to start with a 60-70 second cooking time at 100% power. When done the cake will puff up and appear dry.This recipe was first published February 2016. It was updated with helpful tips and new images June 2025.