Fudge Icing Recipe

For as long as I remember, this Fudge Icing has been a special part of my Grandmother Verdie’s recipe collection.


Fudge Icing Recipe | ©addapinch.com

She’d make it each year to top my sister’s Chocolate Pound Cake Grandmother would make her for her birthday.


While the Chocolate Pound Cake was just delicious on its own, it didn’t hold a candle to when it was topped with her fudge icing.


Maybe that’s why I have this obsession with chocolate.

Fudge Icing Recipe | ©addapinch.com


I will tell you though, this fudge icing is thick and rich – and heavenly! I make it while the chocolate pound cake is cooling and then begin pouring  the fudge icing over the top once it is ready. By the end, I do end up having to just spoon bits of the fudge icing onto the cake it gets so thick.

But oh my word! Just look at that piece of perfection up there!



Chocolate Pound Cake Recipe | ©addapinch.com

Be sure to make this cake WITH the fudge icing soon. It is perfect for celebrations, reunions, picnics, taking on camping trips and just about anything else you can imagine.

Oh yeah – and it works like a charm for those instances when one child is jealous of another’s birthday party.

Believe me, I speak from experience.


Yield: 12

Fudge Icing Recipe

Total Time 10 minutes
Prep Time 5 minutes
Cook Time 5 minutes
Fudge Icing goes perfectly on so many desserts. Get this heirloom fudge icing recipe that is sure to become a family favorite
4.5 from 18 votes
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  • 2 cups granulated sugar
  • 3 heaping tablespoons unsweetened cocoa powder
  • 2/3 cup whole milk
  • 1/2 cup 1 stick salted butter, cut into cubes
  • 1 1/2 teaspoons vanilla


  1. Mix sugar, cocoa powder, and milk together in a large saucepan.
  2. Cook over medium-high heat until large bubbles form and reaches a hard boil. Boil one minute at a hard boil. Remove from heat and add butter and vanilla.
  3. Beat with a wooden spoon until thick and smooth.
  4. Pour over cake. It will harden as it cools.


This icing hardens quickly. I prefer to use it as a poured icing as photographed or poured onto a sheet cake. I would not recommend using it as a spreadable frosting on a layered cake.

All images and text © Robyn Stone for Add a Pinch


This Fudge Icing also works perfectly on so many other desserts! Here are just a few ideas:

Fudge Brownies Recipe

Chocolate Marble Squares Recipe

Cream Cheese Pound Cake

Practically just about anything you would use a ganache on, you can now use this fudge icing recipe. You won’t be sorry!

Robyn xoxo

80 comments on “Fudge Icing Recipe”

  1. Hi Robyn

    I have made this fudge recipe more than once and it has been excellent. We are undergoing a heatwave at the moment and I have made two batches of the recipe and it just won’t set. HELP

    • I’m so glad you enjoy it! I’m so sorry, but it may certainly be the humidity and the heat, Alfie. Hopefully you’ll have a cool part of the day soon to make it a little easier to pour it and let it cool & set/harden. Thanks!

  2. Im stirring and stirring, and all i have is chocolate soup.

    • Hi LM,
      This icing is one that is poured onto your cake. It should get thick and smooth (like mentioned in the recipe) and it should harden after it’s poured onto the cake. This icing is a different consistency than many other frostings. Hope this helps – Thanks!

  3. It’s just the most amazing icing EVER!

  4. What exactly is a “hard boil”?  When I look it up on Google just gives me hard boiled eggs lol.  I candy thermometer has “hard crack” around the 300 degree mark. Is that the same thing?

  5. We love this icing. It’s the closest thing to fudge in an icing that I’ve ever tasted. There is a little problem with who gets to scrape the pot when finished. I have yet to run out of icing when using it on a layer cake. Thanks. Great recipe.

    • Haha, I remember my sister and I scraping the pot after my grandmother made this icing when we were growing up! That is some kind of delicious! Thanks so much for leaving this kind comment – I’m thrilled that you enjoyed this, C.J.!

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