Peanut Butter Cup Blondies

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Peanut butter cup blondies make the best anytime treat!

When faced with a bowl of Halloween candy, there’s only one thing I look for: the gold fluted wrappers which hold my most beloved treat, the chocolate peanut butter cup. If you are anything like me, then you’ll want to hoard tomorrow’s PB cups and bake them into peanut butter cup blondies, an absolute must for peanut butter lovers.

Peanut Butter Cup Blondies

Chopped mini peanut butter cups are baked into the buttery, PB-laced batter; another handful are scattered over the top. If you need one last Halloween dessert, whip up a pan of these blondies in less than an hour.

Peanut Butter Cup Blondies

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Peanut Butter Cup Blondies

Peanut Butter Cup Blondies

  • Author: Laura | Tutti Dolci
  • Prep Time: 15 minutes
  • Cook Time: 30 minutes
  • Total Time: 45 minutes
  • Yield: 12 to 16 blondies



  • 6 Tbsp unsalted butter, melted
  • 1/2 cup creamy peanut butter, melted
  • 1 1/4 cups light brown sugar
  • 1 large egg plus 1 egg yolk
  • 1 1/2 tsp vanilla extract
  • 1 1/2 cups flour
  • 1/8 tsp salt
  • 1/2 cup mini peanut butter cups, chopped


  • 1/2 cup mini peanut butter cups, halved


  1. Preheat oven to 350°F and line an 8-inch square baking pan with parchment paper.
  2. Beat melted butter, peanut butter, and brown sugar with a mixer on medium-high speed until smooth; beat in egg, egg yolk, and vanilla. Reduce speed to low and add flour and salt, beating until just combined. Stir in chopped mini peanut butter cups.
  3. Scrape batter into prepared pan and use a piece of parchment paper coated with nonstick spray to press batter evenly into pan. Top with halved mini peanut butter cups, pressing gently into the batter.
  4. Bake for 26 to 30 minutes, until golden and set in the middle, and a toothpick inserted in the center comes out clean or with a few crumbs attached. Cool completely in pan on a wire rack. Just before cutting, chill in the freezer for 10 minutes. Carefully lift parchment to remove bars from pan and place on a cutting board; cut into squares with a sharp knife.

Keywords: Peanut Butter, Peanut Butter Cup, Blondies, Bars

More easy bars to try:

Chocolate Toffee Blondies
Bourbon Pecan Toffee Blondies
Salted Caramel Crumb Bars

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  1. Peanut butter cups are my favorite of all Halloween candy! What a perfect way to use them. Yum!

  2. These look SO good Laura! So dense and peanut-buttery! I’d take one over Halloween candy any day!

  3. I’m so excited! I’m going trick or treating today! I wonder what candy we’ll get! 😀 I love peanut butter cups too!

  4. They are my absolute favorite too! And what a great way to use them! Sadly my boys are too old to trick or treat so I’m going to have to satisfy myself by buying my own! Think I’m going to have to treat myself!

  5. I just showed these to my husband because they look SO GOOD. 😀 I hope I have some leftover PB cups after Halloween!

  6. I’m slightly obsessed with peanut butter cups – I’d be in big trouble with these bars…the good kind of trouble. 😉

  7. I would need to hide the peanut butter cups to make this tempting Blondie recipe! Better yet, I can find a bag with Halloween wrapping the day after and make these delectable treats!

  8. We are all huge fans of peanut butter cups my husband and daughter especially. I haven’t tried the blondie version but I could pretty well bet they’d love these too.

  9. PB cups are pretty much the only candy I will eat. It’s my absolute favorite. Luckily my 6 year old has already agreed to give her her PB cups from Halloween 🙂

    Glorious recipe!

  10. I love anything with peanut butter cups, Laura, and your blondies are tempting beyond belief. Perfect treat for Halloween (and anytime!).

  11. What a fun treat Laura. I just bought a carton on the mini peanut butter cups, I think I need to transform them into something amazing like this.

  12. I love pb cups, I try to sneak them out of my son’s bag every year! These blondies look like the perfect use for them!