These Peanut Butter Oatmeal Cookies take 20 minutes to whip up, and are a wholesome peanut-buttery treat. With just 5 ingredients you always have on hand, this will become your new favorite cookie.
Disclosure: This post is sponsored by Justin’s. I was compensated for my time in free product, and all opinions are my own.
We have a thing for cookies in my household.
Last minute need to make a dessert with friends over? Chocolate chip cookies. Stand over the oven and have a warm one.
Need to bring something to a potluck or work event? Thumbprint cookies with jam.
Want to win over my significant other? Peanut butter cookies. With cross-hatched fork marks.
While I love making peanut butter cookies from scratch, I never understand the need for all the butter and sugar. Peanut butter is the most delicious ingredient ever – can’t we let it star as the main ingredient?
After toying a few proportions, and trying to tease out the most peanut-buttery taste from these cookies, I ended up with this gem: a 5 ingredient recipe with a hefty base of pure peanut butter. I won’t lie that I can demolish a batch of these in 2 days (I couldn’t help but bite into one below).
The cookies are small on purpose, friends – you should have a handful.
- ½ cup unsalted peanut butter (see note)
- ¼ cup old fashioned oats
- 3 tablespoons granulated sugar
- 1 large egg
- ⅛ of a teaspoon salt
- Preheat the oven to 350 degrees.
- In a bowl, mix together peanut butter, oats, sugar, egg and salt. Stir together vigorously until everything is incorporated.
- Line a baking sheet with parchment paper or a silicone baking mat. Using your hands, form 1 tablespoon-sized balls and flatten them a bit onto the baking sheet. Use a fork to make cross-hatches in the tops of the cookies.
- Bake the cookies for 8-9 minutes, until the bottoms are lightly golden.
- Allow them to cool before storing in an airtight container for up to 5 days.
What cookie recipe is on heavy rotation at your household? Share your favorite – I’d love to try it!
Be well,
Marisa
Christine says
Can this recipe be doubled? I love that it doesn’t have extra ingredients like butter and that the sugar level is low. Thanks!
Marisa says
Hi Christine! Absolutely – I have doubled this recipe with success. The cookies are small so you could also experiment with making a double batch for bigger cookies, though I have stuck only with the tablespoon size so far so you’d have to play with the cooking time!
Ron Loree says
What is the carb count as my son is a diabetic?
Marisa says
Hi Ron – I do not include nutritional information for all recipes, but you should be able to easily enter information in an online calculator based on the ingredients you have on hand.
Emily says
This recipe is incredible, can’t wait to eat these all the time! 🙂 Great job, Marisa!!
Marisa says
Thanks, Emily! So glad you love them!!
Jess @hellotofit says
Oats in cookies are just SO good! It must be the extra texture 😉 yum!
Marisa says
Agreed 🙂 They are such a useful pantry staple!
The Wooden Spoon says
These sound AMAZING! I love any excuse to try a new oatmeal cookie.
Marisa says
Definitely! Hope you enjoy!
Deloris says
Craving something sweet but healthy, these fit the bill. Delish!! Very quick to make.
Thanks.
Marisa says
So glad to hear it, Deloris!
Karla says
These are excellent 🙂
Marisa says
Glad to hear you enjoyed them, Karla!
Kayln Zita says
Loved these! They were super quick to whip up for a perfect late night treat (;
Marisa says
I’m so glad you loved them, Kayln! Thanks for sharing!