Oatmeal Cookie in a Mug with only 4 ingredients needed! This easy single-serve dessert recipe requires 5 minutes and no baking.
You know where this is going.
It’s a Friday night, you’re ultra pumped about how hard you sweated in hot pilates class this week, you can feel an aching in your bones for something sweet and oatmeal-esque but you don’t want a full batch of cookies lurking around your counter space, you then…
Bake a single-serve oatmeal cookie in a mug.
This one is gluten-free, dairy-free, studded with chocolate chips, and has that amazing oatmeal flavor.
Plus it’s ready in less than 5 minutes…not shabby for those times you have a hankering for a little something luscious.
Let’s make it!
How to Make Oatmeal Cookie in a Mug:
Add the gluten-free flour, coconut sugar, baking soda, oats, coconut oil, water, and sea salt to a mug or measuring cup and stir well until a thick dough forms.
Stir in the chocolate chips (if adding).
Microwave on high 40 to 60 seconds, until cookie has set up.
Dive in with a spoon and enjoy!
Baking Instructions:
If you don’t own or operate a microwave, no problem! Simply stir up all of the ingredients in a mug, place the mug on a cookie sheet, and bake at 350 degrees F (preheated) for 25 to 30 minutes. Allow the mug to cool before diving in!!
That single-serve dessert life!
More Single-Serve Desserts in a Mug:
- Gluten-Free Mug Brownie
- Paleo Vanilla Mug Cake
- Paleo Chocolate Mug Cake
- Matcha Mug Cake
- Paleo Banana Bread Mug Cake
My cookbook, Paleo Power Bowls, is now available! CLICK HERE to check it out. Thank you for your support!
If you make this recipe, please feel free to share a photo and tag @TheRoastedRoot on Instagram!

Oatmeal Cookie in a Mug
Gluten-free oatmeal cookie in a mug with chocolate chips - made with only a few basic ingredients. Vegan!
Ingredients
- 1/4 cup gluten-free all-purpose flour
- 3 Tbsp coconut sugar
- 1/8 tsp baking soda
- 2 Tbsp quick oats
- 4 Tbsp coconut oil, melted
- 1 Tbsp water
- pinch sea salt
Optional Add-ins
- 1/4 tsp pure vanilla extract
- 1 to 2 Tbsp chocolate chips
Instructions
- Add all ingredients in the order in which they appear to a microwave-safe mug or measuring cup. Stir in the chocolate chips (if adding).
- Microwave on high 40 to 60 seconds, until cookie has set up.
Nutrition Information:
Yield: 1 Serving Size: 1 cookieAmount Per Serving: Calories: 796Total Fat: 54gUnsaturated Fat: 0gCarbohydrates: 78gFiber: 2gSugar: 45gProtein: 3g
Allison
Sunday 28th of June 2020
Any ideas on how to do this since I don’t own a microwave? Maybe keep the ingredients in a Pyrex measuring cup and bake in the toaster oven for 8-10 minutes? What do you think?
Julia
Sunday 28th of June 2020
Hi Allison,
I'm not sure how long it would take in a toaster oven, as I've never made a mug dessert in a toaster oven :( In a regular oven, it takes 28-30 minutes at 350. Sorry I couldn't be more helpful!