There is something incredibly comforting about a freshly baked cookie, but when you’re craving a sweet treat with zero fuss, this Chocolate Chip Mug Cookie Recipe is an absolute game-changer. It combines the rich, buttery flavor of a classic cookie with the convenience of a quick microwave fix, giving you warm, gooey chocolate chips nestled in soft dough in just minutes. Whether you want a personal dessert or a fast pick-me-up, this recipe is your new best friend in the kitchen.

Ingredients You’ll Need
These simple ingredients come together to create magic in your mug. Each one plays a crucial role, from the buttery richness to the sweet balance, ensuring your cookie is flavorful, tender, and perfectly chocolatey.
- Unsalted butter (2 tablespoons): Melts smoothly to provide richness and moisture for the cookie dough.
- Granulated sugar (1 tablespoon): Adds sweetness and helps with the cookie’s classic texture.
- Packed brown sugar (1 tablespoon): Brings a warm, caramel-like depth to the flavor.
- Vanilla extract (1/8 teaspoon): Enhances the overall taste with a lovely aromatic note.
- Small pinch of salt: Balances the sweetness and intensifies all the flavors.
- Egg yolk (1): Provides richness and helps bind the dough while keeping it tender.
- All-purpose flour (3 tablespoons): The structure builder, it gives the cookie its chewy yet soft texture.
- Chocolate chips (1-2 tablespoons): The star of the show that melts into pockets of gooey sweetness.
How to Make Chocolate Chip Mug Cookie Recipe
Step 1: Melt the Butter
Start by placing the butter in a microwave-safe mug and heating it on medium power for about 20 to 30 seconds. Your goal is to melt the butter gently without letting it boil. This creates a smooth, buttery base that your sugars will blend into effortlessly.
Step 2: Mix Sugars and Vanilla
Once the butter is melted, add both the granulated and brown sugar, vanilla extract, and a tiny pinch of salt. Stir everything together until the mixture becomes creamy and well combined. This step sets the tone for the cookie’s flavor and ensures the sugar is evenly distributed.
Step 3: Incorporate the Egg Yolk
Next, add the egg yolk to the mug and stir thoroughly. The yolk packs in moisture and binding power, giving your mug cookie a rich, tender texture that feels indulgent with every bite.
Step 4: Add the Flour
Now sprinkle in the flour and blend it into the wet ingredients. Keep stirring until you see a smooth dough with no lumps. This careful mixing is key to achieving that perfect balance between soft and chewy in your cookie.
Step 5: Fold in the Chocolate Chips
Gently fold the chocolate chips into your dough, making sure they’re evenly spread throughout. That way, you get delightful bursts of molten chocolate with every spoonful, lighting up your taste buds.
Step 6: Microwave Your Cookie
Place the mug back in the microwave and cook on high for about 40 to 60 seconds. The cookie’s surface should appear set but still be soft to the touch. Avoid overcooking since the cookie will firm up slightly as it cools, keeping it wonderfully gooey inside.
Step 7: Cool and Enjoy
Let your cookie rest for a moment to settle before digging in. Eating it warm straight from the mug allows the melted chocolate to shine, creating an irresistible cozy dessert experience.
How to Serve Chocolate Chip Mug Cookie Recipe

Garnishes
Elevate your warm mug cookie with a scoop of vanilla ice cream, a drizzle of caramel sauce, or a sprinkle of flaky sea salt. These simple touches add extra layers of flavor and texture that make every bite feel special.
Side Dishes
Pair your mug cookie with a cold glass of milk, a cup of coffee, or a chai latte for a perfect sweet treat break. The creamy or spiced beverages complement the cookie’s soft richness beautifully.
Creative Ways to Present
Consider serving your mug cookie with a dusting of powdered sugar or a few fresh berries on top for visual appeal. You can also spoon whipped cream on the side or add a festive sprinkle of cinnamon or nutmeg to mix things up.
Make Ahead and Storage
Storing Leftovers
If you happen to have any leftover mug cookie (though it’s rare), cover the mug tightly with plastic wrap and store it at room temperature for up to one day. Keep in mind that the texture may become firmer as the cookie cools completely.
Freezing
Freezing is not ideal for this recipe since it is best enjoyed warm and fresh straight from the mug. The texture changes might reduce the gooey charm that makes the mug cookie so delightful.
Reheating
To reheat, microwave the cookie for 15 to 20 seconds on high to warm it up again. Watch carefully so the cookie doesn’t dry out, and enjoy it while the chocolate chips remain melty and inviting.
FAQs
Can I use a whole egg instead of just the yolk?
While you could try, using a whole egg may change the texture, making it more cake-like instead of soft and chewy. The yolk alone provides richness without extra moisture that could alter the cookie’s consistency.
What kind of chocolate chips work best?
Classic semisweet chocolate chips are a safe bet for that traditional taste, but feel free to experiment with milk, dark, or even white chocolate chips depending on your preference. Each brings its own flair to the recipe.
Is it possible to make this cookie vegan?
You can experiment by substituting the butter with a dairy-free alternative and using a flax or chia egg in place of the yolk. However, this may require some adjustments to the flour or cooking time for the best texture.
Why is my mug cookie sometimes dry or rubbery?
This usually happens if it’s overcooked. Microwave ovens vary, so start with the lower end of the cooking time and add a few extra seconds if needed. Remember, the cookie firms up as it cools, so don’t overdo it.
Can I double the recipe and make two cookies at once?
It’s best to prepare this recipe one mug at a time to ensure even cooking. Doubling the ingredients in a larger mug may lead to uneven cooking and a less than perfect texture.
Final Thoughts
This Chocolate Chip Mug Cookie Recipe really is a little marvel for anyone craving a quick and comforting dessert. It’s so simple, fast, and endlessly satisfying that once you try it, you’ll wonder how you ever lived without it in your recipe collection. Whether it’s a solo indulgence or a sweet surprise for friends, this mug cookie hits all the right notes every single time.
Print
Chocolate Chip Mug Cookie Recipe
- Prep Time: 0h 5m
- Cook Time: 0h 1m
- Total Time: 0h 6m
- Yield: 1 serving
- Category: Dessert
- Method: Microwaving
- Cuisine: American
Description
This quick and easy Cookie in a Mug recipe delivers a warm, gooey chocolate chip cookie that’s ready in minutes. Perfect for a single serving dessert, it requires just basic ingredients and is cooked in the microwave, making it an ideal sweet treat for when you’re short on time or craving something comforting.
Ingredients
Wet Ingredients
- 2 tablespoons unsalted butter
- 1/8 teaspoon vanilla extract
- 1 egg yolk (discard or save the white for another use)
Dry Ingredients
- 1 tablespoon granulated sugar
- 1 tablespoon packed brown sugar
- Small pinch of salt
- 3 tablespoons all-purpose flour
Add-ins
- 1–2 tablespoons chocolate chips
Instructions
- Melt the Butter: Begin by melting the butter in a microwave-safe mug. Set the microwave to medium power and heat for about 20-30 seconds until the butter is just melted but not boiling.
- Mix Sugars and Vanilla: Add the granulated sugar, brown sugar, vanilla extract, and a small pinch of salt to the mug with the melted butter. Stir until the mixture is well combined and creamy.
- Add Egg Yolk: Incorporate the egg yolk, mixing thoroughly to ensure that it’s fully blended into the sugar-butter mixture.
- Combine Flour: Add in the all-purpose flour, stirring until the batter is smooth and there are no visible lumps. Ensure that the flour is well mixed to create a consistent dough.
- Fold in Chocolate Chips: Gently fold in the chocolate chips into the cookie dough. Stir just until the chips are evenly distributed throughout the dough.
- Microwave to Cook: Place the mug back into the microwave and heat on high for approximately 40-60 seconds. The cookie should be set and feel slightly firm at the surface but soft inside. Be careful not to overcook, as the cookie will continue to firm up as it cools.
- Cool and Serve: Allow the cookie to cool for a minute before enjoying it warm directly from the mug.
Notes
- Be careful not to overcook the cookie as it will continue to firm up after microwaving.
- You can save the egg white for another recipe or discard it.
- Use a microwave-safe mug to prevent any accidents during cooking.
- Adjust chocolate chip quantity based on your preference for more or less chocolate.
- This recipe is best enjoyed immediately for a warm, gooey texture.

