Pin it It is hard to beat the joy of a warm oatmeal chocolate chip cookie made right in your microwave mug. Whenever a cookie craving strikes, this dessert comes together in minutes using just a handful of ingredients. With a perfect chewy texture and melty chocolate chips, this is my favorite single-serve treat for a cozy night in.
I first whipped this up after a long study session and was amazed such a simple mug cookie could taste like something from a bakery. Now it is my secret midnight snack.
Ingredients
- Old fashioned oats: lend an authentic chewy cookie texture opt for ones with substance not instant
- All purpose flour: gives structure choose a good brand to avoid gumminess
- Brown sugar: keeps the cookie soft and adds depth look for moist clump-free sugar
- Butter: adds richness use real unsalted butter for best flavor
- Chocolate chips: melt perfectly in the microwave pick dark or semisweet based on preference
- Milk: softens the mix dairy or plant-based both work
- Ground cinnamon: adds warmth and coziness use fresh ground for the best aroma
- Vanilla extract: brings everything together pure vanilla is worth it
- Baking powder: helps with lift check yours is fresh so the cookie rises
Instructions
- Mix the Dry Base:
- In your favorite microwave-safe mug thoroughly stir together the oats flour brown sugar cinnamon and baking powder with a fork until evenly combined and no lumps remain
- Add the Wet Ingredients:
- Add melted butter milk and vanilla extract to the mug mix well until the dough is thick and feels sticky but not dry
- Fold in the Chocolate:
- Fold in the chocolate chips with your fork making sure they are evenly dispersed so every bite has melted chocolate
- Level and Clean:
- Level the surface with the back of your spoon and wipe any drips off the rim so nothing burns in the microwave
- Microwave and Cool:
- Microwave on high for 70 to 90 seconds depending on the strength of your microwave until the cookie looks dry on top but feels just slightly soft in the center avoid overcooking
- Rest and Enjoy:
- Let cool for at least 1 minute to finish setting and enjoy straight from the mug with a spoon
Pin it My favorite part is swirling the chocolate chips right at the end so you get those melty chocolate pockets in every scoop. I will always remember the first night my little one joined me for a midnight cookie—now it is our special tradition.
Storage Tips
Since this is a single mug cookie it is best eaten fresh while still warm. If you happen to save a few bites cover the mug with plastic wrap and keep it at room temperature for up to 12 hours. To reheat give it just 5 seconds in the microwave.
Ingredient Substitutions
Swap out flour for a gluten-free blend if needed. You can use coconut oil instead of butter for a subtle flavor twist. If you are out of brown sugar try coconut sugar for molasses notes. Add walnuts or dried cranberries for crunch or tartness.
Serving Suggestions
Top your mug cookie with a scoop of vanilla ice cream or a drizzle of peanut butter for an upgraded treat. Sometimes I stir in a pinch of flaky salt for a sweet and salty finish. For kids add a few mini marshmallows before microwaving.
Cultural and Seasonal Context
This treat echoes the comfort of classic oatmeal cookies often baked in big batches during holidays or family gatherings. It is a modern twist for today’s busy schedules. In cooler weather I add extra cinnamon for more warmth. For summer a spoonful of chopped fresh berries gives a touch of brightness.
Pin it Every bite of this mug cookie warms up my evening and brings a little bit of bakery comfort to my kitchen. Try it tonight and make your own sweet memory.
Recipe Questions & Answers
- → Can I use rolled oats instead of quick oats?
Rolled oats work well but may create a chewier texture. Quick oats blend more smoothly in the mug.
- → Is it possible to substitute chocolate chips?
Yes, use white chocolate, dark chocolate, or chopped nuts for different flavors and textures.
- → How do I avoid a dry mug cookie?
Measure ingredients accurately and microwave in short intervals, checking for desired softness.
- → Can I add other spices besides cinnamon?
Nutmeg or ginger can be added for extra aroma and warmth, if preferred.
- → Is this dessert suitable for vegans?
Use plant-based butter, non-dairy milk, and vegan chocolate chips to make it vegan-friendly.
- → What is the best mug size to use?
A standard 12-ounce mug ensures proper rising and prevents overflow during microwaving.