When you’re craving something sweet but don’t want to bake a whole batch of cookies, a chocolate chip mug cookie is your answer. This single-serving treat comes together in just five minutes, from your first ingredient to a warm, gooey cookie ready to eat straight from the mug.
I love this recipe because it’s perfect for those moments when you need a little pick-me-up without the fuss. No mixing bowls, no baking sheets, no leftover cookies sitting around, just you, your mug, and instant chocolate chip satisfaction.
The Ingredient Lineup
This mug cookie uses simple pantry staples and comes together with just seven ingredients. Everything combines right in your microwave-safe mug, so you’re really just stirring and microwaving.
- Melted butter: Use 2 tablespoons of melted butter or coconut oil as your base. Let it cool slightly before adding the egg yolk so it doesn’t cook the yolk.
- Sugars: A tablespoon each of granulated and brown sugar gives you sweetness and a slight chew. You can use just one type if you prefer.
- Egg yolk: This binds everything together and creates that tender cookie texture. Use only the yolk, not the whole egg.
- All-purpose flour: A quarter cup of flour (sifted if you have a sifter) keeps the cookie from being too dense. Mix it in thoroughly to avoid lumps.
- Chocolate chips: Two tablespoons of your favorite chips, regular, mini, dark, milk, or white chocolate all work beautifully.
How I Make Quick Chocolate Chip Mug Cookie
Here’s how to turn these few ingredients into a warm, satisfying cookie in your microwave:
Step 1: Combine butter and egg
Pour 2 tablespoons of melted butter into a microwave-safe mug and let it cool for a moment. Add the egg yolk and stir well with a spoon until combined.
Step 2: Mix in the sugars and salt
Add the granulated sugar, brown sugar, and a pinch of salt to the mug. Stir everything together until you have a smooth, wet mixture with no dry streaks.
Step 3: Add flour and beat smooth
Sprinkle the flour over the mixture and beat it well with a spoon until completely smooth. This step is important, you don’t want any little flour lumps hiding in your cookie dough.
Step 4: Fold in chocolate chips
Stir in the chocolate chips until they’re evenly distributed throughout the dough. Use the back of your spoon to gently wipe any dough off the sides of the mug.
Step 5: Microwave and check
Place the mug in the microwave and cook for 1 minute on full power. The top should look light golden and slightly set. If you’re unsure, start with 40 seconds, check it, then add 10-20 more seconds as needed.
Step 6: Cool and serve
Let the cookie cool in the mug for 2-3 minutes so it sets up a bit. Grab a spoon and enjoy it warm straight from the mug, or turn it out onto a plate if you prefer.
Recipe FAQs
Can I make this in a regular bowl instead of a mug?
Absolutely! Any small microwave-safe bowl works just as well. Just make sure it’s deep enough to contain the cookie as it rises and cooks.
What if my microwave is very powerful and the cookie cooks too fast?
Start with 40 seconds instead of the full minute, then add 10-20 second increments until it’s done. Every microwave is different, so a little testing helps you find the sweet spot.
Can I use a whole egg instead of just the yolk?
You can, but it will make the cookie slightly less rich and a bit more cake-like. The yolk alone gives you that fudgy, tender texture.
How do I know when it's done cooking?
The top should look light golden and set, but still slightly moist in the center. It will continue to cook a tiny bit as it cools, so don’t overcook it or it’ll be dry.
Make Ahead and Storage
Store
These mug cookies are best enjoyed fresh and warm. If you have leftovers, cover the mug and refrigerate for up to 2 days.
Freeze
You can freeze the unbaked dough in a small container for up to 1 month. Thaw and microwave as directed.
Reheat
Microwave a leftover cookie for 15-20 seconds to warm it back up and soften it.
For more on safe storage, see the USDA food-safety guidance for storing leftovers.
Angela's Best Tips
- Don’t use hot melted butter, it will cook the egg yolk. Let it cool for 30 seconds after melting.
- If your microwave is very powerful, start with 40 seconds and add time in 10-second increments to avoid overcooking.
- Sift your flour if you have a sifter to keep the cookie tender and prevent dense spots.
- You can use a small bowl instead of a mug, just make sure it’s microwave-safe.
- Serve with a tiny scoop of vanilla ice cream for an extra-special treat.
What Goes With It
- Serve warm straight from the mug with a spoon for the coziest experience
- Top with a small scoop of vanilla or salted caramel ice cream for dessert
- Pair with a cup of coffee or hot chocolate for a perfect afternoon break
- Crumble it into a bowl with a little milk for a quick cookie-and-milk moment
- More Cookies Recipes to round out the menu
Why This Recipe Works
- Ready in 5 minutes total, no waiting for the oven to preheat
- Single serving means no temptation to eat a dozen cookies
- Minimal ingredients you probably have on hand right now
- Eat it straight from the mug with a spoon, less cleanup
- Perfect late-night dessert or quick afternoon treat
More Easy Recipes
Quick Chocolate Chip Mug Cookie
Ingredients
Equipment
Method
- Mix melted butter, egg yolk, sugar, and salt into a mug. Mix with a spoon.
- Add the sifted flour, beat with a spoon until smooth, so that there are no lumps.
- Add chocolate chips, stir and put it in a microwave. Cook for 1 minute. Let the cookie cool in a mug for a few minutes and serve.
