Reese’s Pieces Peanut Butter Blondies.

Today is my first post and I’m calling all peanut butter lovers! These delicious blondies are LOADED with peanut butter butter flavor and studded with sweet Reese’s Pieces – one of my absolute favorite candies.  The reese’s pieces give the super soft + chewy bars a nice crunch.. I don’t know about you, but I just love a good texture contrast in my baked goods – especially one from Reese’s Pieces. 🙂

I tried to keep these blondies as healthy as I could without comprimising any flavor.  I used light butter instead of full fat butter– I’ve actually had a lot of luck subbing light butter for full fat when I bake blondies or cookie bars that also contain peanut butter.  I like to keep at least some of my recipes on the healthier side.

Hope you enjoy these. They’ve become a staple in my kitchen!

Reese's Pieces Peanut Butter Blondies

Yield: 16 blondies

Print Recipe


  • 1/2 cup (1 stick) butter (I used Land O Lakes light butter)
  • 2 cups packed brown sugar (I used dark, but light would work as well)
  • 1/2 cup creamy peanut butter
  • 2 large eggs
  • 1 tsp vanilla extract
  • 2 1/2 cups all-purpose flour
  • 1 tsp baking powder
  • 1/4 tsp baking soda
  • 1/2 tsp salt
  • 3/4 cup Reese's Pieces


Preheat oven to 350 degrees. Grease 11x7 pan and set aside.
In a saucepan over medium heat, melt the butter and brown sugar, stirring until smooth. Remove from heat, and stir in the peanut butter. Set mixture aside to cool.
In a large bowl, whisk together flour, baking powder, baking soda, and salt.
Add eggs, one at a time, to the peanut butter mixture, mixing well after each egg. Stir in vanilla extract. Add this mixture to the prepared dry ingredients, and stir until batter is smooth. Fold in 1/2 cup of reese's pieces, leaving 1/4 cup to sprinkle on top.
Pour batter into the greased pan, spreading batter evenly. Sprinkle with remaining 1/4 cup reese's pieces.
Bake for 25-30 minutes or until top is golden brown and edges are slightly browned. Allow 20 minutes to cool and cut with serrated knife into squares. Enjoy!

© Sally’s Baking Addiction. All images & content are copyright protected. Please do not use my images without prior permission. If you want to republish this recipe, please re-write the recipe in your own words, or link back to this post for the recipe.


20 Responses to “Reese’s Pieces Peanut Butter Blondies.”

  1. #
    Averie @ Love Veggies and Yogaposted December 12, 2011 at 6:27 pm

    congrats on your new blog! thanks for reading mine and these look wonderful!


  2. #
    Kristy @Sweet Treats & Moreposted December 12, 2012 at 9:05 pm

    I had to post a comment here. Your very first post got one comment and now you get like abajillion a day:) I can’t believe how quickly you’ve grown! I’ve been blogging for several years and feel like I can learn so much from you! Awesome job girly, you rock!!


  3. #
    Ashley @ Kitchen Meets Girlposted December 12, 2012 at 10:25 pm

    Sally! I think even your first post is pretty darn good, although it is so impressive to see how far you’ve come in just one short year! You are seriously amazing, girl! I am so impressed and excited to continuing following you on your blog journey. Loving your blog series posts, too–I’m learning so much from you! 🙂


  4. #
    Kisha J @The Sunflowergal Blogposted January 18, 2013 at 9:34 am

    Totally Pin-able! Thanks for the yummy – my son has requested these for his Bday 🙂



    • Sallyreplied on January 18th, 2013 at 11:12 am

      Thanks Kisha! this is my first blog post ever. I’m glad you like them. 🙂


  5. #
    shanaposted December 12, 2013 at 11:47 pm

    I just made these for the first time. The batter was delicious. They are now in the oven. I’m excited to taste them 🙂


    • Sallyreplied on December 13th, 2013 at 8:47 am

      Hey Shana! I hope you enjoy. 🙂


  6. #
    Candiceposted January 6, 2014 at 10:24 am

    Hi Sally – I made these this weekend, and they were fantastic! However they were a little tough/dry like I used too much flour. So I had two questions – how do you measure your flour? Sifted and measured? Or just dig the cup in? And also, is the brown sugar packed?


  7. #
    Candiceposted January 6, 2014 at 10:56 am

    Great! Thanks!


  8. #
    Lisaposted January 19, 2014 at 10:56 pm

    These are in the oven right now! I’m so excited!!


    • Sallyreplied on January 20th, 2014 at 8:53 am

      Enjoy, Lisa!


  9. #
    Jenahposted March 26, 2014 at 9:04 pm

    I was so exited to make these, I’m pretty are all my measurements were correct , but the batter was really dry and crumbly. I don’t think it was supposed to be. It’s in the oven right now.. So I’m hoping they still turn out. Please let me know what your thoughts are. I only used 2 1/2 cups flour.


    • Sallyreplied on March 27th, 2014 at 10:38 am

      Hi Jenah! The batter is certainly thick, but should not be crumbly. Try being extremely precise about measuring your flour – I’ve run into a lot of problems accidentally overmeasuring. Try to spoon + level, as I explain here: If you were precise, try reducing to 2 and 1/3 cups.


  10. #
    Meggi @ meggi's mixing bowlposted August 20, 2014 at 1:56 pm

    Sally, I have never commented on your blog before, though I am an avid reader. I just wanted to let you know that you inspire me so much. I am a teenager trying to have a nice, popular blog like yours, and seeing your first post gave me hope that maybe, someday I can have a popular blog like yours with 50+ comments on each post. Thanks for being a hugeeee inspiration for bloggers everywhere!


    • Sallyreplied on August 20th, 2014 at 6:11 pm

      Thank you Meggi. You are the sweetest. Best of luck. Work hard!


      • Meggireplied on August 22nd, 2014 at 10:00 am

        I’m literally crying because you replied! It means a lot to me. Thanks so much!

  11. #
    Skyeposted December 19, 2014 at 3:49 pm

    Omgossssshh I found your first post! Of course it was peanut butter- what else could it be?!? You’ve come so far now and yet still peanut butter is blinging out in your recipes! (not that I’m complaining.) I feel we might need a new blog name soon…


  12. #
    Karenposted October 17, 2015 at 5:59 pm

    Is the pan size correct?  I made them today in an 11×7 pan as directed, and the edges looked done after 32 minutes in the oven, but after I took them out and let them cool, beneath the surface it was just solid dough.  It seems like these would work much better in a larger pan: 9×13 or 10×15.  


  13. #
    Melanie Nortonposted December 5, 2015 at 10:50 pm

    This recipe was absolutely fantastic! I had people who don’t like sweets or peanut butter tell me that they loved it. I took these to work and people kept coming by asking me if I had any more long after they were gone. I will never eat plain Reeses Pieces ever again. Thanks for sharing! Followed the recipe as written and it was perfect.


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