Peanut Butter Cup Brownies In A Jar

Peanut Butter Cup Brownies In A JarI made these little beauties for my party on Monday and they were delicious!  Over the top??  Sure, but delicious anyway!  And besides being adorable, they were easy to make!  They consist of brownies, chocolate frosting, peanut butter cups and peanut butter frosting.

**Update: I recently learned that Ball canning jars are NOT oven safe so I’ve changed the directions for this blog post.**

Brownies Baked In Jars

Bake the brownies according to the directions on the package. Use a small cookie cutter or the top of the mason jar to cut circles of cooked brownies out of the 9×13 pan. Place the brownie circles in the mason jars.

Frosting On Brownies In JarsPipe on store bought chocolate frosting.

Chopped Reese's Peanut Butter CupsI cut a bunch of Reese’s Peanut Butter Cups into small chunks… sorry I didn’t count how many, but I think you need a little more than 1 peanut butter cup per jar.

Peanut Butter Cups In Jars
Just put the peanut butter cup chunks on top of the chocolate frosting.

Peanut Butter FrostingTo make the peanut butter frosting, I mixed together 1 container of store bought vanilla frosting and 1 cup of peanut butter.  Then, I mixed in 1 cup of powdered sugar.  After that I added, 3 tablespoons of half-n-half and beat it until it was creamy.

Peanut Butter Cup Frosting In JarsI piped the peanut butter frosting on top of the peanut butter cups.

Peanut Butter Cup Brownies In A JarThe last thing I did was stick 1/4 of a peanut butter cup into the peanut butter frosting.  I stored them in the fridge until I was ready to serve.

Peanut Butter Cup Brownies In A JarThese were seriously delicious but very rich.  They were almost too much to eat in one sitting…not because of the size of the jars but because of how sweet they were!

Peanut Butter Cup Brownies In A Jar
Recipe type: Dessert
  • 1 brownie mix
  • Water, eggs and oil that are called for on the box
Chocolate Layer:
  • 1-16oz container of chocolate frosting
  • Pipe chocolate frosting into each jar, over the brownies.
Peanut Butter Cup Layer:
  • About 18 Reese’s Peanut Butter Cups
Peanut Butter Frosting:
  • 1-16 oz container of vanilla frosting
  • 1 cup peanut butter
  • 1 cup powdered sugar
  • 3 tbsp half-n-half
  1. Preheat oven to 350°F. Make the brownies according to the instructions on the package. Use a small cookie cutter or the top of the mason jar to cut circles of cooked brownies out of the 9×13 pan. Place the brownie circles in the mason jars.
Chocolate Layer:
  1. Pipe chocolate frosting into each jar, over the brownies.
Peanut Butter Cup Layer:
  1. Cut the peanut butter cups into chunks and place them on top of the chocolate frosting in the jars.
Peanut Butter Frosting:
  1. Mix together the vanilla frosting and peanut butter. Add the powdered sugar and mix well. Beat in 3 tbsp half-n-half until smooth and creamy. Pipe the peanut butter frosting over the peanut butter cups in the jars.
  2. Top each frosting peak with ¼ of a peanut butter cup and store in the fridge until ready to serve!
Share With Your FriendsPin on PinterestShare on YummlyShare on FacebookShare on StumbleUponTweet about this on TwitterShare on Google+Email this to someone


  1. sue patton says

    Gotta share what I did with these…Needed a holiday bake sale item for a fundraiser so I actually started by making the brownies in a cupcake pan. At my favorite dollar store I purchased a bag of red plastic forks,a couple of bags of clear cello treat sacks and a bag of clear plastic cocktail glasses. Sliced the brownies in half, put the bottom half into the cup,piped in the chocolate frosting and a few of the reese chunks, popped in the top of the brownies, another little layer of reese’ chunks and then piped in the pnut butter frosting and popped a reese’ mini on top…stuck one of my red forks down into he side of the cup and placed each cup in a cello bag and tied it tight with he twistie around the fork. They were ADORABLE and sold for TWO DOLLARS each!! So…at the next bake sale I repeated these, but also made a couple of dozen with Andes mints, green tinted mint frosting on top and a green fork and then made double chocolate frosting kit kat ones and used yellow forks and snickers ones with a pnut butter frosting topper again with gold forks….I actually picked up party napkins to match the forks this time and presented each purchase with a matching napkin.These sold for 2.50 each!! People loved them because they could walk around eating their treat while they looked at the other craft tables…they had their fork, napkin, and when they were done everything went into the cello bag and got tossed away neatly! I can’t tell you how many folks stopped on their way out to buy a couple to take home!! Two of these fit nicely in a brown paper lunch bag (50 for a 1.00 at the dollar store)!! I dd decide to make my own icing rather than buying the icing in a can the second time because it increased the profit per unit…but now I also make sure that whenever I see icing on sale…or brownie mixes…i grab a few and store them in my pantry for the next bake sale!!

    • Tonia says

      Wonderful! I am so happy to hear that! The Andes mints version sounds fantastic. My sister is having a craft sale soon. I will have to tell her to try to make these! ~Tonia

      • sue patton says

        Great! Tell your sister that we completely sold out of these both times! Loads of our other baked goods went home with the moms and grandmas. We actually could have sold triple what I baked because we were sold out long before the craft show was over and had so many folks come asking for them. I wonder how we’d do if we each baked a different flavor and had a complete “candy brownie cup” stand? This year I am going to add curly ribbons to the twist ties, add a few sprinkles and try cranking the price up to 3 bucks! I’m an old retailer from way back and I know for sure that…PRESENTATION=SALES!! ( of course…the yumminess of this great treat is what brought so many customers back to buy extras to take home!!!)

    • Tonia says

      Thanks for the feedback Rosey! I’ll update the post when I get a chance but for now I would suggest that you copy and paste the recipe onto a blank document and print it off that way. Happy Baking! ~Tonia

    • Faye says

      Just highlight and then copy the recipe. Then go to you email and paste in a message to yourself and send. The you can highlight again and right click to print. I do it all the time as I too, like to make a copy but there are no always a “print” tabs. Then I have a folder for just recipes there also. Just saying….but you may already know this.

Leave a Reply

Your email address will not be published. Required fields are marked *

Rate this recipe: