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Microwave Chocolate Chip Cookie In A Mug

A simple, single-serving, gooey chocolate chip cookie that can be prepared and cooked in your microwave within minutes.
4.46 from 87 votes
Course: Dessert
Cuisine: Microwave Cooking
Prep Time: 5 minutes
Cook Time: 1 minute
Total Time: 6 minutes
Servings: 1
Calories: 502kcal
Author: Melissa No. 2 Pencil


  • Microwave safe mug or ramekin
  • Microwave


  • 1 tablespoon unsalted butter 14g
  • 1 tablespoon caster sugar 13g
  • 1 tablespoon dark brown sugar 13g
  • 1/8 teaspoon pure vanilla extract
  • small pinch salt
  • 1 egg yolk room temp if possible, but not necessary
  • 3 tablespoons plain flour 30g
  • 2 heaping tablespoons dark/semisweet chocolate chips 30g


  • Choose a microwave-safe mug/ramekin/small bowl. I used an 8-ounce ramekin (4 inches in diameter).
  • Place the butter in the mug and melt in the microwave; do this in 15 second intervals at about 70% power. When you have small bits of butter remaining, take it out of the microwave and gently swirl, or stir, the butter until the bits have melted.
  • To the melted butter, add sugars, vanilla and salt. Stir well.
  • Add the egg yolk and stir well to combine.
  • Add the flour, and stir until combined. The consistency of the dough should be like wet cookie dough; if it's too runny, add a touch more flour until the consistency is firmer, or if it's too stiff, add a splash of milk.
  • Add the chocolate chips and stir to evenly distribute throughout the dough. Flatten the surface of the dough with the back of the spoon.
  • Microwave at about 100% power for 30-40 seconds. Continue in 10 second intervals until the cookie is done (mine took 60 seconds). If you overcook the cookie, it will be become dry and hard. Always err on the side of less cooking time.


Cooking times will vary, so go slowly until you get a feel for how long your cookie needs.
The cookie is done when it looks slightly wet on top, but will spring back up if you press down lightly on the surface.


Serving: 100g | Calories: 502kcal