Peanut Butter Fudge Iced Brownies


I’ve lost count of how many of you have tried this icing since I first brought it to Southern Plate back in 2008 on Red’s birthday cake. Our family tradition has us putting it over a yellow cake but the combination of chocolate brownies paired with this old fashioned boiled icing is a whole new level of old fashioned decadence – so much so that I’m devoting a whole new post to it!

We’re gonna start with boxed mix made brownies. I used two boxes of mix to make mine extra thick. If you do that you need to cut your oven temperature down to 325 and add about fifteen minutes to the baking process.

As far as which mix to choose goes, I usually get Kroger brand or some other generic but when I went to Krogers this brand was on sale for $1.00 a box. I’d go for whatever is cheapest where you shop because I’ve never met a brownie mix I didn’t like :).

You don’t have to use two boxes of mix, one is fine and you get to taste more of the icing!

You can also make them from scratch by using your own recipe or Susan Spencer’s Grandmothers recipe for Blue Ribbon Brownies.  The peanut butter icing will take on the star of the show so go with whatever you prefer and what you have time for but as for me and my house, we will make them from a mix today.

Folks that turn their noses up at anything that was baked for them, be it from a mix or completely from scratch, don’t deserve to have people making them brownies anyhow. Snootiness doesn’t bother me though, because that just means there is extra room in my life for good hearted folks with more sense :)

For our icing we’ll need: Peanut butter, sugar, a bit of salt, bit of shortening and margarine, little vanilla (I really do need to get a smaller bottle coz eventually someone is going to think they have to go buy a gallon), and some milk.

Place your milk, sugar, shortening, margarine, and salt in a good sauce pot and put this over medium heat.

Stir constantly while you wait on all of it to melt and come to a boil.

This is what it looks like as it starts to melt.

My photo turned out with more yellow than it actually had so ignore that. Clearly, I’m not seeking accolades for my food photography.

I’m more like ~tilts head and looks before snapping the pic~ Eh. Good enough.

This is the icing mixture as it has come to a boil.

What you are going to do is stir it constantly until it comes to a full rolling boil and then stop and let it boil on it’s own (no stirring) for two minutes.

Remove from heat and pour in vanilla.

(I forget this half the time and it still turns out fine)

Add in your peanut butter and stir quickly until it is all melted and well blended.

Folks, I’m NOT kidding about stir quickly here. This sets up fast.

Now this is ready to pour.

Pour over your cooled brownies and spread to cover it all.

Mine would have been all smooth but I was trying to take photos at the same time and that ate up some of the time I should have been spreading.

Allow to cool completely .

You can occupy yourself during this time by licking the sauce pot clean once it cools enough to let you!

Go impress people because you rock. Seriously, you do. Look what you just made!

Peanut Butter Fudge Iced Brownies
  • 1 box brownie mix, prepared according to package directions*
  • 1-1/2 cups sugar
  • 7 tablespoons milk
  • 2 tablespoons shortening
  • 2 tablespoons margarine
  • ¼ teaspoon salt
  • 1 teaspoon vanilla
  • ½ cup creamy peanut butter
  1. Prepare brownies according to package directions and allow to cool completely before beginning icing.
For the Icing
  1. In heavy saucepot combine the sugar, milk, shortening, margarine, and salt. Bring to a rolling boil while stirring constantly.
  2. Once it reaches a rolling boil stop stirring and let boil for two minutes or until it reaches soft ball stage (I don't use a thermometer, I just let it boil for two minutes).
  3. Remove from heat and quickly stir in the vanilla and peanut butter. Beat until smooth and quickly spread over the brownies.

*This recipe works fine for a 9×13 or 8×8. If making an 8×8 pan of brownies, I’d still use this same amount of icing and just let it be thicker.


I hope you’ll take time to read the story of why this icing is so special to me by clicking here.

You can also find the story and this icing recipe on page 258 of the Southern Plate cookbook.

I want to thank you again for all of your kind reviews on – My mother actually read them all the other day!

“Smile and give your face a holiday”

Doris says, “This was my Mom’s favorite saying.” Thank you, Doris!

Submit your quote by clicking here.


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  1. Kathie from Baltimore says

    Hi Everyone and Happy Valentines Day!

    I made these and took them to work ( a new job) today. What a hit they were! I also made the Oreo balls and everyone couldn’t get enough of them. Thanks Christy for all your witty posts and wonderful receipes. I have your cookbook and use it often. Friends always say what I wonderful cook I’ve become and I make sure to give you all the credit. Keep up the good work.

  2. GIna Stellmach says

    I have made these once a week for 4 weeks straight!. They are unbelievably good. Everyone that has tried them loves them and they are gone in a flash! Plus super easy and no one knows :) Thanks for the great recipe!

  3. Kathy says

    These are the BEST brownies EVER! I am a chocoholic, not necessarily the peanut butter kind of gal but OH MY GOSH I could eat the whole pan of these by myself and almost did! WONDERFUL!!! This is definitely a dessert to take to a party or get-together. They will be a hit!

  4. blondk8 says

    I made the brownies with peanut butter fudge icing yesterday with my 6 yr old grandson…and I just had to let you know how much we all loved them ! They were super easy to make…even a 6 yr old can mix them up. I did the stove top cooking of the icing, but he measured everything out and best of all he got to lick the pan and the spoon.
    Thanks for a great recipe, I plan on making these again and again !

  5. Veronica says

    YUMMY!! Made your no bake PB chocolate covered fudgy delicious bars for a potluck at work yesterday…they were a HUGE hit. One girl came up to me and told me that my recipes were “Slamming!!” Had to hand out this recipe to several people. Thanks Christy for making simple recipes that are “Slamming!!” LOL

  6. Sue Horne says

    Hello Christy!
    I made these this morning and about died! My Husband is going to as well (he loves peanut butter cups)..the icing is F.A.B.U.L.O.U.S!!! I made a double batch so that I could share. My friends and neighbors will be thanking you all the way from North Carolina!

  7. Anne says

    These brownies were a huge hit. One daughter said they were the BEST brownies she had ever had and she’s had a lot. My 6 yr old grandson said they were “wicked”! Other grandkids loved them too! Thank you!

  8. says

    I have made the Laundry Detergent and I really like it. It was easy to make, and I am enjoying using it. My grocery store didn’t have Fels Naphtha, but they did have the Zote brand and I got that. Next time I’ll look elsewhere to find the Fels Naphtha to see which I like best. I’ve also used a number of your other recipes and have loved every one of them. Thanks so much for sharing with us!!!!

  9. Marylyn says

    Don’t keep mixes on hand, except yellow cake mix to use with Cake Doctor recipes – so I made Susan Spencer’s brownie recipe to go under this peanut butter icing. The first day I thought ‘these brownies leave something to be desired’ but — oh, my goodness, the second day and — after freezing some of the leftovers and getting them out to enjoy — they are the BEST! They age into a wonderful chocolate treat. I will make them again and I have only used one old favorite brownie recipe of my own for about forty years but —- will use this one when I need/want a chocolate fix again.

  10. says

    I found out on Thursday that I was having a miscarriage and today they confirmed that the pregnancy is over via ultrasound. I am making these brownies and eating the whole pan as comfort. Thank you for posting it.

  11. Debbie says

    Hi Christy, I made these for my neighbors birthdat and wrapped them up- he is a HUGE PB /chocolate fan. I cut them into squares and drizzled with melted dark chocolate to fancy them up :) He just called to ask for a copy of the recipe as he LOVES them- his grandson headed out the door with 4 pieces in his hand lol

  12. Jenn S. says

    These brownies are the most amazing brownies EVER.. and I mean it!!! A friend was visiting who was a huge fan of chocolate cake with peanut butter frosting. His birthday was this past friday. I made this recipe (using Ghirardelli Triple Chocolate Brownie Mix), decorated it with piped melted chocolate chips and served it without having ever made it before. A little bold.. maybe.. but your recipes are always awesome! I felt confident from experience in making your other recipes, that I could take it for granted that your heirloom recipe for pb frosting would be perfect. I was right!!! He absolutely loved it and asked for a copy of the recipe. So, I’m sharing a link of this on his facebook page and we’ll all have to scoot down a little and make another place at the virtual Southern Plate family table for another new member! Thanks so much, Christy!!!

  13. angelo says

    hey christy i’m trying to make my mom a birthday surprise and i don’t know how to make a cake well i could but don’t have the ingredients or money to go buy them but i do have everything here except the shortening is it necessary to use that if so i guess ill have to figure something else out i don’t want to make the usual brownies cause i always make brownies so i hope u get back to me soon because Friday February 17 is her birthday.

  14. Katie Short says

    I made this frosting for some chocolate “wacky cake” (known as Pipe Creek Cake in SE Ohio circles). First, ya gotta love a cake recipe with no butter, eggs, or milk – yay for cheap AND yummy! Second, I cooked this frosting closer to 3.5 minutes than the two Christy did. I got distracted. We won’t tell anyone I was distracted by watching the microwave timer and realizing how dirty my microwave was, OK? Anyway, the frosting was a little more firm than it would have been otherwise, but still tastes amazing. I had made an 8×8 cake, so I used about half the frosting as such, and poured the other half into a loaf pan lined with parchment paper that I had sprayed with PAM. It is some of the best peanut butter fudge ever. I’m thinking of adding this recipe to my Christmastime repertoire as fudge. Great!

  15. Lisa says

    Hi Christy! I made these for a church event on Saturday and they were a big hit! I was so glad that a little of the frosting was left in the saucepan (how did that happen?) so I just had to eat it! It wouldn’t have been right to serve something without testing it myself. :) Anyway, thanks a bunch!

  16. Peggy Watson says

    Oh my, now this recipe of “Peanut Butter Fudge Iced Brownies” will absolutely be perfect with the “Oreo Ice Cream Cake” that I have planned to make for my brother’s 75th birthday celebration July 11…..WOW! Thanks again for wonderful recipes!!! Have ordered your book & hopefully will be able to order your new book when you have it ready to sell….I have started a new collection…Christy Jordan’s Cookbooks!!!

  17. Chris says

    I made these last weekend while at the beach with my daughter and her two girls. The girls absolutely loved these and the 14 year old wanted a copy of the recipe to take back to Birmingham with her! She had them for breakfast and snack! I know, not a good idea but hey, we were on vacation!

  18. Angie says

    I made these brownies with pbf icing a few days ago and they are delicious! However, I did have a question… icing ended up kind of dry and crumbly and didn’t stick to the brownies at all. When I tried to cut the brownies (with icing on them) it ended up being a bit of a mess. Tasted great yes – looked great – not so much. Any idea what I might have done wrong to the icing to make it dry and crumbly? Thanks very much!

  19. Nikki says

    I made this icing on the yellow cake. I used margarine, shortening, brown sugar, and skim milk. I timed it to boil exactly 2 minutes, and it was very runny. Most of it ran down the sides and under the cake instead of staying on top of it. What did I do wrong?

    Amazing taste though, even though we’re scraping the icing off the sides and bottom of the pan!

    • says

      First off, I’m so sorry this didn’t turn out perfect for you! BUT I’m glad it tasted good! You seem to have my attitude towards things, if we can still eat it, we’re gonna be grateful for it! Even if we can’t, we’ll still find some reason to be thankful! lol
      I have never used skim milk in making this and all of the other ingredients are just how I always do them, so I’m thinking the skim milk has to be the culprit here. If you don’t normally stock whole milk, a good way to get around changing your habits would be to keep evaporated milk in a can on hand and that should work just fine. I hope you try it again and I am so sorry it didn’t turn out!

      • Nikki says

        I wondered about the skim milk too but wasn’t sure. I should be just stirring it briefly to cool it slightly before pouring on the cake – right? Not getting out my mixer and beating it into submission? How thick should it be before I pour it on the cake?

        Thanks for your help! I’m eating way too much of this cake the last couple of days.

  20. Carol Faver says

    Christy…dying to try this today for hubby. Car in shop, no shortening in the house but have everything else. Will it be missed? Can I double up on the margarine? Wondered if it helped with the thickening process? Opinion please and they sound WONDERFUL…..Carol

  21. Dawn says

    A couple of weeks ago I made homemade brownies and wanted to frost them. Soooooo…I started searching and as soon as I saw this, I knew the search was over! :-) The peanut butter frosting is to die for. My sons girlfriend ate over half of a 9×11 pan of brownies!! I could just eat the frosting…forget brownies! LOL

  22. Margaret says

    This frosting sounds so super yummy! ….well like most of your recipes!
    Your vanilla bottle reminds me …LOL….I have a big bottle of vanilla my F-in-L brought me from Mexico and my sister saw it in the cabinet and thought I was hiding my alcohol!

  23. Sandralox says

    I didn’t pay attention too well to the directions, so I did not let the frosting boil for two minutes AND i poured it on a still warm pan of brownies. It was fine, everyone enjoyed them, and we licked the frosting pot. It is not a hard frosting as far as texture (fudge had me thinking it would be a firm solid coating on top), but it’s in the casserole dish, so it worked out fine.




  1. […] Peanut Butter Fudge Iced Brownies which I came across on pinterest. I’m not sure I can actually eat icing which is made with shortening but I would just like someone else to make these for me so I could taste it without actually having to bear witness to what’s inside. […]

  2. […] These peanut butter fudge brownies will impress anybody!! They are amazing. It looks hard but it is OH SO EASY!! Trust me if I can make these you can and you can show up at a party with this decadent dessert saying “oh its just a little something I whipped up” Click here for the recipe on Christy Jordan’s blog Southern Plate. […]

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