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Microwave Mug Cookie

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Prep Time 3 minutes
Cook Time 1 minute
Rest Time 1 minute
Total Time 5 minutes
Servings: 1 serving
Course: Dessert
Ingredients Method

Ingredients
  

  • 1 tablespoon unsalted butter
  • 1 tablespoon packed light brown sugar
  • 1 tablespoon granulated sugar
  • ¼ teaspoon vanilla extract
  • Pinch of salt
  • 1 egg yolk
  • 3 tablespoons all-purpose flour
  • 2 tablespoons semisweet chocolate chips

Method
 

  1. Melt the Butter
    Place the butter in a 10- to 12-ounce microwave-safe mug and microwave for 20–30 seconds, until just melted.
  2. Mix in the Sugars
    Stir in the brown sugar, granulated sugar, vanilla, and salt until smooth and glossy.
  3. Add the Egg Yolk
    Mix in the egg yolk until fully combined. Make sure the butter is warm, not piping hot.
  4. Stir in the Flour
    Add the flour and stir just until no dry patches remain. Spoon and level the flour rather than packing it to keep the cookie soft.
  5. Add the Chocolate Chips
    Fold in most of the chocolate chips, then sprinkle the rest over the top.
  6. Microwave
    Microwave for 40 seconds, then check the center. Continue in 5–10 second bursts as needed, usually 45–60 seconds total, until the top is set but the center is still soft.
  7. Rest and Serve
    Let the cookie rest for 1–2 minutes so the center can finish setting. Serve warm straight from the mug.