Soft and Sweet Treacle Fudge

Soft and Sweet Treacle Fudge

Before I set out on my journey to make delicious foods inspired by the Harry Potter books, I had never heard of treacle before. Upon further investigation (thanks internet) I found that it’s a type of light sweetener, similar to molasses, that’s popular in British sweets. Of course, this made finding some a bit more difficult. I had to order a bottle on Amazon (found here) to use for this recipe and the Treacle Tarts.

Treacle Fudge first appears when Hagrid gives it to Harry, Ron, and Hermione in The Chamber of Secrets after Ron’s wand backfires and has him burping up slugs. It’s also sold at Honeydukes in the Wizarding World of Harry Potter in Orlando.

“He [Professor Lockhart] was the on’y man for the job,” said Hagrid, offering them a plate of treacle fudge, while Ron coughed squelchily into his basin.

“An’ then I told him [Lockhart] I’d never read one o’ his books an’ he decided ter go. Treacle fudge, Ron?” he added as Ron reappeared.

-Harry Potter and the Chamber of Secrets

Soft and Sweet Treacle Fudge

I’ve always enjoyed fudge, but I hadn’t made my own before trying this out. A few of the times that I went to Wizarding World in Orlando, I bought fudge from Honeydukes, and it was delicious! They have so many different flavors there to choose from. It’s been years now, so I don’t remember which we bought. All I know is it was addicting!

Since the only fudge mentioned in the Harry Potter series (other than Cornelius Fudge, former Minister of Magic) is the treacle fudge, I decided to try that one. I found a recipe here and worked with that the best I could.

I originally made my treacle fudge with regular molasses because, at that time, I wasn’t able to find the golden syrup in stores here, and I didn’t have time to order it online before I wanted to make the recipe. If you use the golden syrup, they will be a bit lighter in color than mine, and probably a bit sweeter.

For the treacle fudge, you are going to want to use an 8×8 baking dish. The fudge won’t be baked, but that’s a good size for the amount of fudge this makes. Prepare your pan by greasing it, or lining it with parchment paper.

In a saucepan, over medium heat, add all of the ingredients except the vanilla extract. Stir constantly until the butter melts and everything is well combined.

Soft and Sweet Treacle Fudge

Soft and Sweet Treacle Fudge

While you are stirring, wash down any sugar crystals that form on the pan with a pastry brush dipped in hot water. You don’t want those crystals to get back into the fudge later when they don’t combine with everything else.

Soft and Sweet Treacle Fudge

Once the fudge has melted, stop stirring and let it cook until the mixture reaches 225F on a candy thermometer then remove the pan from the heat and immediately stir in the vanilla extract.

Soft and Sweet Treacle Fudge

Let the fudge sit, without heat, for about 5 minutes, until the bubbles start to subside. Now for the not-so-fun part:  take the candy thermometer out of the pan and stir constantly with a wooden spoon for about 15-20 minutes. The mixture will start to lose the glossy sheen and get very thick. This is when it’s best to have someone helping so you can take turns because my arms were getting worn out!

Soft and Sweet Treacle Fudge

Pour the fudge into your baking dish and smooth it out on the top using the palm of your hand. Just be careful because it may still be a little warm.

Soft and Sweet Treacle Fudge

Soft and Sweet Treacle Fudge

After the fudge has completely cooled at room temperature, about an hour, carefully cut it into squares and serve!

Soft and Sweet Treacle Fudge

Soft and Sweet Treacle Fudge

Soft and Sweet Treacle Fudge

Soft and Sweet Treacle Fudge

Soft and Sweet Treacle Fudge
Print Recipe
5 from 6 votes

Treacle Fudge

Prep Time30 mins
Cooling Time1 hr
Total Time30 mins
Course: Dessert
Keyword: dessert, fudge, Harry Potter


  • 1 cup sugar
  • 1 cup brown sugar
  • 8 tbsp butter
  • 1/2 cup heavy whipping cream
  • 2 tbsp treacle syrup
  • 1/4 tsp cream of tartar
  • 1 tsp vanilla extract


  • Prepare an 8x8 baking dish by greasing or lining with parchment paper
  • In a medium-sized saucepan over medium-high heat combine everything except the vanilla extract
  • Cook until the butter is melted, stirring constantly
  • Use a wet pastry brush to remove any sugar crystals from the edge of the pan while stirring
  • Cook without stirring until a candy thermometer reaches 240F then remove from the heat
  • Immediately stir in the vanilla extract and let the fudge cool for 5 minutes
  • Stir vigorously for 15-20 minutes, until the fudge thickens and loses its glossy sheen
  • Pour the fudge into the prepared baking dish and let cool for at least one hour
  • Carefully cut the fudge into bars and serve

Soft and Sweet Treacle Fudge Soft and Sweet Treacle Fudge

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14 thoughts on “Soft and Sweet Treacle Fudge

  1. This would be the perfect treat for a Harry Potter movie marathon! I love this idea; and it’s so easy to make!

  2. Nice! I didn’t realize there was actually treacle syrup. Would love to try. I made treacle tart from the book and discovered glorious golden syrup. Have you ever had that? Yummy!

  3. We are definitely going to make this for our next Harry Potter marathon! This looks easy enough for the kids to get involved. Thank you for satisfying my sweet tooth!

  4. I still haven’t seen any of the Harry Potter movies. So I haven’t heard of treacle either. Of course Amazon would have it LOL. The treacle fudge recipe looks amazing! I love different types of fudge so I may have to give this a try.

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