Peanut Butter Cup Blender Brownies

Peanut Butter Cup Blender Brownies – deeply chocolate brownies with a peanut butter cup inside, whipped up in a blender! |
I was happy to discover that my Vitamix came with a HUGE hardcover cookbook with over a hundred recipes highlighting all of the great things I can make in my new blender. I was surprised to see several baking recipes in there. Never before had I considered whipping up a batch of cookies or brownies in a blender, but when OXO asked if I wanted to bake some brownies in support of pediatric cancer research (more on that later),  I decided to give it a whirl (pun intended. lame.)
Peanut Butter Cup Blender Brownies – deeply chocolate brownies with a peanut butter cup inside, whipped up in a blender! |
Since I was already forging new territory by making brownies in a blender, I decided this would also be a good chance to make from scratch brownies, something I’ve done only a few times in the past. You know that box mix? The kind that includes the Hershey’s syrup? I love that stuff. To me, that’s a great brownie, and I’m not embarrassed to admit it. However, just this once, I decided to make Fudgy Brownies from Inspired Taste. These blender brownies were absolutely as good (if not a little better) than my beloved boxed brownies. PLUS, I smushed a mini peanut butter cup in the middle of each one. So, there’s that.
Peanut Butter Cup Blender Brownies – deeply chocolate brownies with a peanut butter cup inside, whipped up in a blender! |
Now, to the feel-good part – for each blog post in September dedicated to the #OXOGoodBrownie campaign, OXO will donate $100 to the Cookies For Kids Cancer charity. So, I get to eat brownies, and they donate to charity! Also, if you need any baking tools, be sure to check your local store for these OXO items that are specially marked with a Bake A Difference / Cookies For Kids Cancer tag. OXO will donate 25 cents, up to $100,000 in support of pediatric cancer for each specially marked item sold!
Peanut Butter Cup Blender Brownies – deeply chocolate brownies with a peanut butter cup inside, whipped up in a blender! |
CFKC_sticker_forprintFind OXO and Cookies for Kids’ Cancer on social media:

Peanut Butter Cup Blender Brownies – deeply chocolate brownies with a peanut butter cup inside, whipped up in a blender! |

Peanut Butter Cup Blender Brownies

Yield: About 16 brownies


  • 10 tablespoons unsalted butter
  • 1-1/4 cups granulated sugar
  • 3/4 cup plus 2 tablespoons unsweetened cocoa powder
  • One large pinch kosher salt
  • 1 teaspoon vanilla extract
  • 2 large eggs
  • 1/2 cup all-purpose flour
  • 16 miniature Reese’s Peanut Butter Cups


  1. Preheat oven to 350 degrees F. Line a 9×9 baking pan with foil or parchment, leaving an overhang so you can easily lift the giant brownie out later.
  2. Set up a double boiler: Add a few inches of water to a medium saucepan. Place saucepan on stove over medium heat so it’s just barely simmering. Rest a heatproof bowl (or second saucepan) over saucepan. Add butter, sugar, cocoa powder and salt to bowl; heat over medium heat until butter has melted, stirring frequently. Remove from heat and let stand 5 minutes.
  3. Pour cocoa mixture into blender. Add vanilla and one egg; blend on low speed until combined. Add second egg; blend on low speed until combined. Add flour; blend until all flour is incorporated, and batter is smooth and shiny.
  4. Spread batter in prepared pan. Press peanut butter cups into batter, in four rows of four.
  5. Bake 25 to 30 minutes or until toothpick inserted between peanut butter cups comes out almost clean (I like to underbake brownies just a little). Cool completely, then lift out of pan and cut into 16 squares.


Adapted for blender from Inspired Taste.

Making one of my recipes? Please let me know by sharing a photo on my Facebook page, or uploading to Instagram or Twitter with the tag #foxeslovelemons. It would make my day!

Disclosure: I received an OXO Good Brownie Tool set, including a brownie spatula, measuring cups, measuring spoons, and a silicone pastry brush, at no charge. I was invited to help spread the word about this great cause by sharing a favorite brownie recipe. I was not compensated for writing this post, and all opinions are my own.



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  1. I have never thought to mix something in my Vitamix that I will then bake. I have to give it a try.

    I mean, really, it just can’t get any easier than using my Vitamix! 🙂

  2. I love that you made brownie batter in your blender–genius! I also love that you stuffed them with a pb cup.

  3. I’m always terrible at making brownies because the batter is so thick that I either leave clumps or get so OCD about spreading them perfectly flat in the pan that half of the batter just sticks to my spatula. Same with cookies, they have to ALL be the same size!
    My favorite recipe to make in the blender is a green smoothie. My favorite recipe to make in a food processor is homemade Nutella!

  4. Really want one of these to emulsify spinach! Our current one doesn’t do the trick.

  5. I love to make sauces, like avocado pasta sauce and want to try my hand at homemade nut butter!

  6. These look great! I would love to try these because I always use my blender, but I just broke. Hope to win a new one! 😉

  7. *Sob* <– I'm crying cause I'm not eligible for the Vitamix contest. How's about you just bring one up for me when you visit Vancouver in a few weeks 😉 Mm'kay, thanks! This is such a great thing OXO is doing. And your brownies look craaaaazy delicious. Just looking at that peanut butter cup baked in there is making my stomach growl.

  8. peanut butter and banana shakes!

  9. Brownies in a blend? You betcha! Also with peanut butter cups? Makes me one happy lady.

  10. I fix smoothies in it.

  11. houston’s spinach artichoke dip

  12. I make a lot of PB & choco protein smoothies!
    jitterbug1 at gmail dot com

  13. Pumpkin soup!

  14. I love smoothies, my favorite is pineapple and cucumber :+)

  15. I love making smoothies especially a new smoothie I just tried with Pineapple,Mango, and kale.

  16. My favorite drink to make in a blender is a tall Margarita with plenty of ice.

  17. I love making date smoothies!

  18. I love making smoothies; although I’m wanting to try something where I’ll have to bake it afterwards.

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