← BlogJune 28, 2026

How to Make the Perfect Chocolate Chip Mug Cookie

American · Easy · 5 min · 1 servings

vegetarian
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This warm gooey chocolate chip mug cookie is made in the microwave in under 3 minutes and tastes just like a fresh-baked cookie straight from the oven. Butter brown sugar and chocolate chips create a perfectly chewy single-serve treat with melty chocolate in every bite.

Why this recipe works

This Chocolate Chip Mug Cookie recipe has been crafted to deliver restaurant-quality results in your home kitchen. At just 5 minutes from start to finish, it fits perfectly into a busy schedule without sacrificing flavor. Each serving comes in at 430 calories with 5g of protein, making it a balanced choice for any meal.

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What you will need

This recipe uses 6 simple ingredients that you can find at any grocery store:

  • 1 tablespoon butter softened
  • 1 tablespoon brown sugar
  • 1 tablespoon granulated sugar
  • 3 tablespoons all-purpose flour
  • 2 tablespoons chocolate chips
  • 1 tablespoon beaten egg

Step by step instructions

Step 1: Cream Butter and Sugar

Place softened butter brown sugar and granulated sugar in a large microwave-safe mug and mix together vigorously until fluffy and well combined.

Step 2: Add Egg and Flour

Add the beaten egg and flour to the mug and stir until a thick cookie dough forms with no streaks of dry flour visible.

Step 3: Fold in Chocolate Chips

Fold chocolate chips into the dough reserving a few to press on top for visual appeal then smooth the top of the dough in the mug.

Step 4: Microwave and Rest

Microwave on high for 60 to 75 seconds until the edges are set but the center still looks slightly underbaked for maximum gooeyness. Let rest 1 minute before eating.

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Easy substitutions

Missing an ingredient? Here are some swaps that work perfectly:

  • butter → vegan butter for a dairy-free cookie with the same rich flavor
  • chocolate chips → peanut butter chips for a fun flavor variation

Common mistakes to avoid

Watch out for these pitfalls that can affect your results:

  • Microwaving the cookie too long which makes it rubbery and dry instead of chewy
  • Using cold hard butter which prevents the sugar from creaming properly and creates a dense texture

Nutrition facts

Per serving: 430 calories, 5g protein, 55g carbs, 22g fat, 2g fiber.

Ready to cook?

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