Cookie Butter Brownies

5 from 29 votes

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These chewy Cookie Butter Brownies are topped with creamy frosting and are perfect for a party or anytime treat! Careful, they’re addicting, just like my classic brownie recipe!

Cookie Butter Brownies with a cookie butter frosting

These Cookie Butter Brownies a combination of my homemade brownie recipe with cookie butter frosting. That’s right. You heard me. COOKIE. BUTTER. FROSTING.

What is Cookie Butter you ask? Imagine peanut butter but instead of the taste of nuts, you have the flavor of Biscoff cookies! So good!

Chewy, soft, thick, chocolaty brownies topped with creamy, heavenly goodness. And, they take no time at all to make! Perfect treats for a party or this weekend.

Main Ingredients Needed

You don’t need much to make these Cookie Butter Brownies. But what you do need is of course, cookie butter! If you can’t find any feel free to sub out with peanut butter, Nutella or another alternative. Here’s what else you need:

For the Brownies

  • Butter + Chocolate – these are used for our fudgy base!
  • Cocoa Powder + Vanilla – both are used for flavor.
  • Sugar – to sweeten.
  • Eggs – for structure and texture.
  • Flour – this fills out the rest of the brownies.
  • Baking Powder + Salt – for rise and to balance out the sweet.

For the Cookie Butter Frosting

  • Butter + Cookie Butter – these two create a super smooth texture as well as flavor. You can find cookie butter at Trader Joe’s or online.
  • Powdered Sugar – to sweeten and thicken the frosting.
  • Vanilla – to flavor.
  • Milk – this thins out the frosting so it’s spreadable.

Looking for more Cookie Butter uses? Try these Cookie Butter Rice Krispie Treats!

For full details on how to make Cookie Butter Brownies, see the recipe card down below 🙂

Make Brownie Batter

Start by melting some butter, chocolate chips and cocoa powder together in a small pot. Once the mixture is all smooth, remove from the heat.

Stir in some sugar, then two eggs, and some vanilla. Measure your dry ingredients out into the pot and stir stir stir until just combined.

Bake + Cool

Pour the batter into a greased 9×9 glass baking dish and bake! Once the brownies are done baking, pull them out of the oven and allow to cool completely.

Cookie Butter Frosting

In the mean time, find yourself a little bit of this stuff: cookie butter! It’s similar to biscoff spread but the trader joes version.

So, take some cookie butter and throw it into a small bowl with some softened butter. Add in some vanilla and powdered sugar and stir.

Once thick paste forms pour in some milk. Stir it all up until your frosting is lovely and smooth. Spread this all over your cooled brownies, cut into bars and serve.

bite taken out of cookie butter brownie

More Brownie Recipes to Try!

Like so. A little bit of heaven right here. Feel free to use peanut butter or not use the frosting at all. These brownies are great anyway you want to eat them!

Here’s the printable! Have a great day!

Fudgy Brownies with Cookie Butter Frosting
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5 from 29 votes

Cookie Butter Brownies

These chewy Cookie Butter Brownies are topped with creamy frosting and are perfect for a party or anytime treat! Careful, they're addicting!
servings 16 small squares
Prep Time 20 minutes
Cook Time 20 minutes
Total Time 40 minutes


for the cookie butter frosting-

  • 3 tablespoons butter softened
  • 3 tablespoons cookie butter or peanut butter
  • 1/2 teaspoon vanilla extract
  • 1 cup powdered sugar
  • 1 tablespoon milk


  • Preheat oven to 350 degrees. Spray a glass 9×9 square pan with non stick cooking spray and set aside.
  • In a small pot, melt butter, chocolate chips and cocoa together over medium low heat, stirring until smooth. Remove from heat and stir in sugar. Stir in eggs, 1 at a time and vanilla. Gently stir in all dry ingredients until just incorporated. Pour into prepared pan and bake 20-30 minutes or until just set. Mine was done right at 20 minutes, but my oven is also hotter than the sun. Set aside to cool.
  • For the frosting, stir butter, cookie butter, vanilla and powdered sugar together until a thick paste forms. Stir in milk carefully and then mix vigorously to smooth out any lumps. Spread over brownies, cut into bars and serve.


Calories: 253kcal | Carbohydrates: 33g | Protein: 2g | Fat: 13g | Saturated Fat: 7g | Cholesterol: 42mg | Sodium: 152mg | Potassium: 84mg | Fiber: 1g | Sugar: 24g | Vitamin A: 277IU | Calcium: 17mg | Iron: 1mg
Course: Dessert
Cuisine: American
Keyword: cookie butter brownies
5 from 29 votes (1 rating without comment)

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Recipe Rating

86 Responses
  1. Amy @ PaintWineRepeat

    5 stars
    These are currently cooling on a baking rack!!
    I hope its okay that I’ll be reviewing them on my blog on Wednesday — linking back to you as always!!

  2. Stephanie @ Macaroni and Cheesecake

    Love your method of softening the blow with your husband! Great idea to tell him the bad news softly and emphasize the good!:) Hilarious! These sound so decadent and I love the idea of topping it with cookie butter frosting!

  3. Jenny @ BAKE

    I think I overplayed my hand at that one! Now whenever I compliment my other half it’s responded with ‘what do you want?’! these brownies look delicious! I’m sure you’ll have chore leverage for ages now!

  4. Kate

    5 stars
    Lauren, your brownie recipe is awesome. No more box mixes for me!! I couldn’t make the frosting as I didn’t have the cookie butter on hand, but you can be sure that I will find it & make these again 😉 Can’t wait to try some of your other recipes. Thank you!

  5. Cecilia

    5 stars
    Dude, I made these tonight after FINALLY finding some cookie butter. First of all the brownies alone, are the best brownies I’ve ever made. Second of all, the cookie butter frosting…OMG.

  6. Erin @ Dinners, Dishes and Desserts

    5 stars
    LOVE!!! Brownies are my favorite for sure. I made a version of this frosting awhile ago on cupcakes, and it was incredible! So I know it would be great here!

  7. Angie

    5 stars
    I live in Africa, so no TJ. I made the frosting with just peanut butter for the brownies, OH MY!!!
    Thanks Lauren for sharing your delicious recipes, love your blog!!!

  8. From Valerie's Kitchen

    Somehow I knew when I came here today I would find something ooey, gooey, and chocolaty and I was right! Looks delish!

  9. Badra

    I’ve been craving brownies for a while now and sadly every recipe I tried didn’t turn out good :c
    but I’M SO MAKING THIS tomorrow after I get back from college 😀
    my mom is a PB addict so thats a plus 😀

  10. Chung-Ah | Damn Delicious

    You had me at cookie butter!

    I definitely need to make these and send it in a care package to the boyfriend. He’s going to be thrilled!

  11. Katie @ Blonde Ambition

    I FINALLY tried Speculoos cookie butter recently, in one of those Trader Joes cookie butter-stuffed dark chocolate bars. Not what I expected, but soo good paired with dark chocolate! I bet these brownies would be just as good!

  12. Melissa S.

    i love perfume and makeup almost as much as food! i’m sure i’m not the only one who waants to know what perfume and makeup! thnx

  13. Mary @ Bake Break!

    Apparently I need to get myself some cookie butter!! Perhaps next time I’m in Portland I’ll pick some up (I’ve yet to see it here in Montana…).


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  15. Hayley @ The Domestic Rebel

    Yeah, I definitely think this is what heaven looks like. Hello, fudgy brownies! And HELLOOOOO cookie butter frosting. Please meet my face. You two will get along real nice-like.

  16. Emily @ She Makes and Bakes

    Wowzers! I want these right now. We don’t have a Trader Joe’s in Colorado yet (tear), so I’ll be using Biscoff. Delicious!

  17. Lisa Lopez

    Will promptly drive five miles out of my way to Trader Joe’s today to get Cookie Butter because those look RIDUNCULOUS, (as my kid would say)!

  18. Tai

    5 stars
    To prove that I have absolutely no impulse control, I just threw those beautiful brownies in the oven. “But,” I said to my crazy self, “Trader Joe’s is an hour away, I have no Biscoff, and we have a peanut allergy in the house. Can I possibly substitute anything else?” I reached in my pantry and pulled out my Costco-sized container of The Greatest Substance Known to Man (some call it Nutella). Oh yes, I did. And I am not sad about it.