Peanut Butter Brownie Bars

9 Reviews / 4.2 Average
Just in time for Valentine's Day, I've got the perfect homemade treat for you! These Peanut Butter Brownie Bars would also make a fun little treat to share.
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Just in time for Valentine’s Day, I’ve got the perfect homemade treat for you (and the one you love)! These Peanut Butter Brownie Bars would also make a fun little treat to share with teachers and neighbors in honor of the upcoming “day of love,” especially if you’re me and you’ve made this recipe three times in the last week in order to get it just right. :) I can assure you though, the final outcome was worth the wait. It’s hard to beat that perfect combination of sweet chocolate and salty peanut butter! (Oh, and if you’re new here, FYI, the refined sugar in this recipe does break the rules, but it’s something we don’t mind in an occasional homemade treat now that our official 100-day pledge is over.)

Peanut Butter Brownie Bars on 100 Days of #RealFood

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Be sure to try these Peanut Butter Rice Krispie Treats too!

Peanut Butter Brownie Bars on 100 Days of #RealFood

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66 thoughts on “Peanut Butter Brownie Bars”

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Recipe Rating

  1. i have tried this recipe for my kids more than three times; every time its like they are having it for the first time yummy and delicious. thumbs up

  2. These are delicious, my family loves them. I modified it a bit using Coconut Palm Sugar in place of the sugar and coconut oil in place of the butter in the brownie layer.

  3. I made these tonight and LOVED them. I substituted the sugar for honey and they still tasted great. Looking forward to seeing what my 2 year old thinks, my husband thought they were ok. Which is fine by me….I will enjoy this treat by myself!!

    1. Did you have to make any other adjustments to the recipe because you used honey? I like to use honey instead of sugar as well.

  4. Super excited to try this recipe! I just started baking with whole wheat flour and am having a difficult time selling to the hubby. Hopefully this one will make him smile :)

  5. 2 stars
    These were okay, but for the amount of sugar that this recipe calls for they are not worth it. If you do make them take them out at 30 mins.

  6. 3 stars
    Aw, I wanted so much to love these but they were not hit with my family. I think the cakey texture and the peanut butter/chocolate combo itself just wasn’t for us. I’ll stick with your 5 Minute Brownies – they are our favorites for sure!

  7. 5 stars
    Made these yesterday with homemade peanut butter and they turned out great and they are all gone! Everyone loved them! Thank you!

  8. Made these for Valentine’s Day, and they were a hit. A nice treat!
    I got the Real Food Cookbook for Christmas, and I have made about 10 recipes between the book an the blog so far – love it!

  9. We have a soy and peanut allergy in our family. I can use our soy free choc chips, but have you ever had anyone make with sunflower butter?

  10. I made this in an 8X8 for the family, but would like to bring it to a gathering…I plan on doubling the ingredients and wondered if the baking time would be the same? Thanks, it was very tasty!!!

    1. I usually double 8 x 8 recipes into a 13 x 9 pan with great results. I usually cook it for the shortest amount of time and just really watch it.

  11. Great recipe. I made it gluten free by using buckwheat flour. My son said he could eat 15 pieces. That means it is a great recipe. A wonderful valentine treat and easy to make.

  12. Look absolutely delicious and decadent – perfect any time but especially for Valentine’s Day. Planning to make this afternoon but first need you to please clarify ingredient in brownie layer – is it 1 stick (which is equivalent to 1/2 cup) of butter, melted OR is it 1/2 cup melted butter? Thank you in advance for your response.

  13. Made these last night….. Fabulous!! I served them with homemade whipped cream. They were a hit with everyone! Thanks, Lisa, for another great recipe!

  14. Sorry, guess I should clarify on a gluten-free, wheat flour substitute in my previous post…can’t have the traditional gluten free cup-for-cup flour mixture because I also can’t have white potato, soy, sunflower ingredients. Cyndi

  15. LOVE this recipe (as I have all of them – own the cookbook and bought it for relatives)! Quick question: Do you buy organic wheat flour? I buy the King Arthur Whole wheat flour (that I think you’ve mentioned before) but I don’t buy the organic brand. Should I? I do buy organic produce and organic sugar, local honey, hormone free meats etc etc HOwever, grains I’m always unsure what to do. advice appreciated!

    1. Amy Taylor (comment moderator)

      Hi Erin. Lisa does by organic flour. What you purchase is totally your call, but I think the more pesticides avoided, the better. :)

  16. It just so happened that I had all of these ingredients in my cabinet, so I just finished baking a bath using a gluten free flour mix! These are absolutely delicious!!!! Thanks for sharing this fantastic recipe!

  17. I love your recipes, but when I’ve made your other brownie recipe in the past the result has been a little dry. I started subbing in maple syrup (something I started doing thanks to your many delicious muffin recipes), and they come out just right for my family (with the bonus of being refined-sugar free).

    1. Amy Taylor (comment moderator)

      Hello Donna. No brand in particular. Just look for an organic pb with peanuts as the only ingredient (a little salt is okay, too). My personal favorite is Costco’s Kirkland brand but there are lots of good ones out there.

  18. Thanks for the recipe, these look delicious! I’d love to take a batch to my daughter’s school for valentine’s day but they are tree nut free, do you think sunflower butter would work?

  19. Sounds Awesome!
    I really want to try this recipe. I cannot use wheat, would you recommend another flour besides white?
    How about Organic Spelt or Almond?
    Thank you in advance!

  20. Hi Lisa!

    These look REALLY good – but do you have any thoughts on a gluten-free substitute for the whole wheat flour?


    1. Amy Taylor (comment moderator)

      Hi Angela. You could try a gluten free whole grain blend but we’ve not tried subbing the flour in this recipe.

    1. Try buckwheat flour. I’ve used in place of whole wheat flour in recipes with the same results and not much of a different taste. Still delicious.

    1. Amy Taylor (comment moderator)

      Hi Becca. Sorry that we are not usually able to answer recipe questions in real time. You could not sub a liquid one to one with a granulated sugar and expect the same results.

  21. Can you tell me why the parchment paper? I use it when the recipe calls for it, but how it is different than buttering the pan? Thank you!

    1. Lining with parchment paper is so that the brownies are easier to get out. A while back I saw Martha Stewart line a brownie pan with parchment paper. She went up and over each side securing with a metal binder clip. I tried it and now do the same every time. It makes it SO easy to get the brownies out of the pan. Simply tear a piece of parchment large enough to line pan width wise (I usually make a rectangle pan) roll, measure against the bottom and cut. Repeat for length (same for square). Then butter pan, line with parchment, secure with binder clip, butter paper and repeat with second piece.

  22. Funny, I just came on your site to look for a brownie recipe as my girls are requesting it for Valentine’s Day instead of jam heart cookies. These look great. I’m sure you have not tried it, but do you think I could sub sucanat or coconut sugar for the brown sugar? I do not think I have any brown sugar at home. Thanks!

  23. What kind of peanut butter do you use in this recipe? Do you think homemade peanut butter would work? I’ve had trouble cooking with natural peanut butter in the past and am wondering what you chose. I can’t wait to make this recipe, though, it looks delicious. As always, thank you for the post. Keep ’em coming!

    1. I’ve never tried homemade peanut butter in this recipe and actually tested it with the natural jarred stuff since that’s probably what most people have at home. You could always add a little more melted butter if you have trouble stirring up your homemade version with the other stuff. Enjoy!