Peanut Butter Mug Cookies

FEA (Food-Eating Adam AKA my boyfriend) is out in the field for a couple of days, and I am relishing the time alone in the house. I’ve been listening to podcasts on full blast to pretend like I’m talking to other humans, changing my Instagram handle every 20 minutes or so because I can’t decide on a good one (I’ve settled on @lentilwemeetagain, so hit me up), and experimenting with healthy pasta sauce recipes. I didn’t have any wine in the house, so I settled on the next best thing to settle in for the evening: cookies. But since there’s only one of me, I couldn’t justify making an entire tray of cookies and decided to try my hand at a cookie-in-a-mug recipe. I have had great success in the past making brownies and coffee cake in a mug, but cookies either turn out dry as a bone or produce molten lava at the center. I think this is a pretty decent mix of the two, making for a nice moist, peanut-buttery morsel to top off your day.

We had a flourless peanut butter cookie recipe in my house growing up that was absolutely famous among my friends and family for being the best peanut butter cookie around. It just came from a random search one time, but I’m telling you it was absolutely perfect. Especially if you added white chocolate chips to the dough…nothing beat these cookies. I haven’t been able to relocate the recipe despite countless search attempts on the website, and I don’t have a paper copy of it anymore. This is my attempt to recreate the perfection of the flourless cookies (minus the white chocolate chips since we’re all out), so feast your eyes and tastebuds on this miracle in a mug and have a wonderful Wednesday evening!



1/2 egg
1/4 cup peanut butter
1/2 tsp vanilla extract
1/4 cup granulated sugar
1/4 tsp baking soda


  1. Scramble egg in a small bowl and pour approximately half of it into the mug you’ll be using.
  2. Mix in peanut butter to the egg with a fork until loosely creamy and then add in the vanilla.
  3. Mix in the rest of the ingredients until the dough is stiff enough that it sticks to the spoon.
  4. Microwave for 2 minutes until cookie puffs up to the top of the mug. Continue microwaving in 20 second intervals if necessary. Be careful when you dig in, the middle will be very hot!

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