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This recipe is all about taking the simple peanut butter cookie to the next level.  Have you ever experienced one of those moments when you’re craving something sweet and a simple cookie won’t do?  Me too!  So, I thought I would take some peanut butter cookies that I had baked previously, and make cookie sandwiches with the most decadent frosting I could possibly muster up.

frosting 6

You may have already read my post about the classic peanut butter oatmeal cookie.  If not, you can find out how to make them here:  Peanut Butter Oatmeal Cookies.  The focus of this post will be the peanut butter chocolate butter cream frosting.  Now, everyone knows how to make a basic butter cream frosting, however, the peanut butter cookies that I had on hand, needed some chocolate as well.  And while I was in the process, I thought I would up the peanut butter intensity as well by added peanut butter to the butter cream mixture.

frosting 3

I was on a cookie-baking kick the day I made this recipe.  John.e and I were invited to a colleagues cottage for the day and I was tasked with bringing veggie burgers (because John.e was the only vegetarian in attendance), dessert of some sort, and diet coke (because I was the only diet coke drinker).

frosting 1

To totally impress, and to satisfy everyone’s tastes, I brought four or five different types of cookies to the cottage.  As usual, I over packed and over prepared.  Even though everyone had a cookie or two, there were still many left over.  Gladly, I didn’t have to bring any back home with me because the other guests all split up the leftovers and took them on their merry way.

frosting 4


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4.25 from 4 votes

Peanut Butter Sandwich Cookies with Chocolate Butter Cream Frosting

Course Dessert
Prep Time 5 minutes
Cook Time 5 minutes
Total Time 10 minutes
Author Lord Byron's Kitchen


  • 1 cup smooth peanut butter
  • 1 cup unsalted butter, room temperature
  • 2 cups confectioner's sugar
  • 1/2 cup cocoa powder
  • 2 teaspoons vanilla extract


  • In a large mixing bowl, mix the butter and peanut butter until well blended and creamy
  • Add the vanilla extract and blend well into the mixture
  • Add the cocoa powder and confectioner's sugar
  • With the mixer on low speed, incorporate the cocoa powder and confectioner's sugar into the mixture
  • Once the cocoa and sugar have been blended into the butter mixture, continue to mix on high speed until fully incorporated


peanut butter chocolate frosting


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This Post Has 14 Comments

  1. Ooh that surely does it for me. I love the combination of chocolate and peanut butter,. I have bookmarked your peanut butter cookies and will sandwich them with some of this frosting. What lucky guests to have such a fabulous goodie bag to take home with them.

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