Microwave Peanut Butter Cookie
Published July 4, 2021 • Updated February 3, 2026
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Craving a small dessert but don't want to bake a dozen cookies? This microwave peanut butter cookie is a single serving. You mix the dough in a bowl, microwave it for 2 minutes, and you're done. No leftovers to resist, no batch temptation.
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Ingredients
2 tablespoons almond flour -
1 tablespoon natural peanut butter
-
1/2 tablespoon unsalted butter, softened
-
2 teaspoons coconut flour
-
2 teaspoons monk fruit blend sweetener
-
pinch of salt
Step by Step Instructions
Step by Step Instructions
Mix peanut butter cookie dough
Combine almond flour, peanut butter, butter, coconut flour, sweetener, and salt in a small bowl. Use a fork to cut everything together until mixed.
Crisscross
Roll the dough into a ball and place on parchment paper. Press down with a fork in a crisscross pattern (the classic peanut butter cookie look).
Microwave instructions
Microwave at 50% power for 2 minutes. Let cool completely before handling. The cookie is delicate while warm and firms up as it cools.
Nutrition disclaimer
The nutrition information provided is an estimate and is for informational purposes only. I am a Doctor of Pharmacy (Pharm.D.); however, this content is not intended to be a substitute for professional medical advice, diagnosis, or treatment. Always consult your physician or other qualified health provider before making any lifestyle changes or beginning a new nutrition program.
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Get My Macros (Free) →Frequently Asked Questions
Can I use regular flour instead of almond or coconut flour?
Regular flour will change the texture and make it not low-carb. Stick with almond and coconut flour.
What if I don't have monk fruit sweetener?
You can use erythritol or stevia instead. Just adjust the amount to match your sweetness preference.
How should I store any leftover cookie if I make more than one?
Store leftover dough in an airtight container in the fridge for up to 3 days. Reheat in the microwave for a few seconds when you're ready to eat.
Is there a dairy-free alternative for the unsalted butter?
Absolutely! You can use coconut oil or a dairy-free butter substitute for a dairy-free version.
Can I add chocolate chips or nuts to this cookie?
Yes! Feel free to add a few sugar-free chocolate chips or chopped nuts for extra flavor and texture, just be mindful of the additional carbs.
These were very tasty. I made a couple substitutions as I didn’t have butter or coconut flour.
So, for 2 cookies I made the following changes / notes …
Notes: (double batch)
- Subbed 2 tsp phylum husk, 3 tsp water for coconut flour
- Subbed coconut oil for butter
- Added 1 tsp vanilla
- 2 min soft, 2:30 a bit of crunch
- Fridge to chill
I now have this recipe on a note on my iPhone and will make it when ever I have that need.
Psyllium husk instead of coconut flour, interesting. How was the texture? I've never tried that in this one but it makes sense for binding.
I just made these and they are so yummy and so easy. But they really do need to cool completely before eating. I couldn’t wait for them to cool and my first attempt end up being cookie crumbles 😃 but they were still delicious so I didn’t mind. Thanks for sharing!
Can you use powdered peanut butter?
I haven't tried using powdered peanut butter. I'm sure it would work though - you may have to add more liquid.
I love this recipe, however, I’ve sadly concluded that I really need to avoid dairy. Can I sub coconut oil for the butter? Or is there enough oil in the pnb so as to not need to add extra? Thanks!
I haven't tried using coconut oil, but think it would work. If you try it let me know!
I have actually made 3 ingredient peanut butter cookies in microwave a few weeks ago ... 1 cup peanut butter, 1 large egg and 1/2 to 1 cup sugar. I've placed 12 balls (which I've then lightly pressed down with a fork) on a greased dinner plate. A bit brittle, but quick and yum. (My microwave is really 'weak' (700 watts), so use the above recipe's microwave directions and see.
I really enjoyed this recipe. I made one change. I added 2 Tsp Sukrin gold. This took care of my cookie craving. I’ve also tried your individual chocolate chip cookie recipe. Thanks a bunch!?
Jackie Kriley