This single serving, deep dish chocolate chip cookie in a mug is seriously gooey and delicious. Ready in under 5 minutes – is dangerously delicious and easy to make! 
Do you ever have those moments of weakness late at night when you’re craving something sweet? You just need to treat yourself, and snacking on something healthy just isn’t going to cut it? Well, that’s what this mug cookie is for. It’s a simple, gooey, extra moist chocolate chip cookie that’s made in a mug and “bakes” in the microwave.
So it’s ready in minutes and tastes delicious with a scoop of ice cream that starts to melt and mixes with the warm chocolate chips.
Drooling yet?
How to Make a Chocolate Chip Cookie in the Microwave
Making this cookie in a mug is the perfect way to bake chocolate chip cookies in the microwave. Trust me – I’ve tried forming dough into balls and cooking it in the microwave, and it really doesn’t work without the mug.
It’s similar to making a mug cake, only the ingredients are a little different so that we end up with a cookie that’s chewy instead of moist and fluffy like a cake.
Here’s the ingredients:
- 1 ½ tablespoons butter
- 2 tablespoons brown sugar
- 1 large egg yolk (discard the egg white)
- 1 drop (or ⅛ teaspoon) vanilla extract
- 3 tablespoons all-purpose flour
- pinch of salt (optional)
- 2 tablespoons of chocolate chips
You can use white sugar if that’s all you have on hand, but I found the brown sugar provided a much better flavor. I tried making this with both milk and the egg yolk for moisture. I found that the egg yolk provided a moister, more cookie-like texture whereas with milk it ended up a little drier and a little less chewy. However – if you really don’t feel comfortable using the egg yolk you could use 1 tablespoon of milk instead. 
First we whisk together the butter, sugar, egg yolk & vanilla in a large mug. Then stir in the flour and salt, followed by the chocolate chips. The consistency should be like chocolate chip cookies – thick and definitely not runny. Then microwave on medium power for 60-90 seconds. It’s really important to make sure your microwave is on medium power and not high power, otherwise, it can overcook and the chocolate chips can bake and burn (which will smell terrible!).
I also find it’s better to be slightly underbaked instead of overbaked because then it turns out moist and gooey, and you don’t risk it getting dried out 😉
This easy chocolate chip cookie in a mug is dangerously delicious. It’s ready in no time, so easy to make, and you get a warm, “out of the oven” chocolate chip cookie in no time. 
For more single serving desserts, try these other favorites:
Or for more chocolate chip cookie recipes:
Chocolate Chip Cookie in a Mug
Ingredients
- 1 ½ tablespoons butter
- 2 tablespoons brown sugar
- 1 large egg yolk discard the white
- ⅛ teaspoon vanilla extract
- 3 tablespoons all-purpose flour
- 2 tablespoons chocolate chips
Instructions
- Add the butter to a large mug and microwave until melted.
- Remove from the microwave and whisk in the brown sugar (I use a fork for this).
- Ensure that the butter isn't too hot (otherwise, you'll scramble the egg), then whisk in the egg yolk and vanilla extract.
- Stir in the flour (the mixture should be thick like cookie dough), then stir in the chocolate chips.
- Microwave on medium power (50-70%) for 60-90 seconds or until the top looks just set. Do not microwave on high power, otherwise, the cookie can become hard and the chocolate can burn. I check after 60 seconds to see, then add an extra 15 seconds as needed.
- Enjoy immediately, optionally with a scoop of ice cream.
All I have to say is bless you for this recipe. Can not tell you how many times I crave a cookie but don’t have the energy to make an entire batch. This just solved my 1 out of my 99 problems but possibly the most important . Soooo yummmyyyyy 🤩
Absolutely amazing recipe. Perfect every time. The only microwave dessert recipe I like.
Just made this recipe, I couldn’t figure out how to change the heat level on my microwave but I think I found a trick if anyone has the same issue as me! Just use the soften/melt setting for 1 minute, it came out so perfect!!
Made this tonight (well made two! One for me one for my husband!) it was sooooooo gooooood!!!
Glad you made 2 so you didn’t have to share with your husband! Thanks so much for reporting back
I love this I’m just a kid and this is amazing and quick to make thank you!
Just tried this with almond flower and it turned out great! I just had to add an extra tablespoon to get it to the right consistency.
Excellent!
Bless your heart for this recipe! Breast feeding cravings are crazy right now and this is perfect for a quick and easy fix. It’s soooo good! Thanks!
Thank you so much Steph! Glad it makes your late nights a little better.
I have made many mug cookies, and this recipe is easily the best one! The search is over! Thank you for sharing this, it’s probably going to become a problem with how convenient this is to make.
Yay! That sounds like a delicious problem 😉
This is lovely! Just what I needed tonight! It cooked up perfect. I wish I had ice cream, but a glass of milk with it was also nice. 😁