Introduction
Brown sugar and butter melt together first, then double cream goes in slowly so the sauce stays smooth instead of splitting. The black treacle is optional but gives the sauce a darker, deeper toffee note. You can make this in 15 minutes and use it warm over cakes, puddings, ice cream, or pancakes.
Recipe Details
- Prep Time: 5 minutes
- Cook Time: 10 minutes
- Total Time: 15 minutes
- Servings: 8
Ingredients
- 300 g brown sugar or Muscovado sugar
- 150 g unsalted butter
- 1 tsp vanilla essence
- 1 tbsp black treacle (optional)
- 300 ml double cream (~48% butterfat)
Instructions
- Combine the sugar, butter, vanilla, and treacle in a saucepan over low heat, and gently stir until everything has melted. Low heat is needed so that the sugar does not burn and so, when you add the double cream, the cream does not split.
- When everything has combined, slowly add in the double cream and gently stir.
- Once the cream has been mixed in, turn up to a medium heat. Stirring gently, wait until the sauce is bubbling and hot, then take it off the heat.
- Combine the sauce with the recipe of your choice and/or place into a pouring jug and keep warm.
Variations
- Use Muscovado sugar instead of standard brown sugar for a stronger molasses flavor and a darker sauce.
- Leave out the black treacle for a cleaner caramel profile and a slightly lighter color.
- Swap the double cream for whipping cream if needed; the sauce will be a bit looser and less rich.
- Keep the sauce on medium heat for 1 to 2 minutes longer after it starts bubbling if you want a thicker finish that sets more firmly as it cools.
- Add a small pinch of sea salt with the sugar if you want a salted caramel effect and a sharper contrast to the sweetness.
Tips for Success
- Keep the first stage over low heat so the sugar melts gently instead of catching on the bottom of the pan.
- Add the double cream slowly, not all at once, to reduce the chance of the mixture separating.
- Take the sauce off the heat as soon as it is bubbling and fully hot; it will continue to thicken slightly as it cools.
- If you are serving it at the table, warm the pouring jug first so the sauce stays fluid longer.
Storage and Reheating
Let the sauce cool, then transfer it to a clean jar or airtight container. Refrigerate for up to 5 days.
Freezing is not the best option for this sauce because the texture can separate when thawed.
To reheat, warm it in a small saucepan over low heat, stirring until smooth and pourable. You can also microwave it in short 15 to 20 second bursts, stirring between each one. If it has thickened too much in the fridge, stir in a small splash of cream while reheating.
FAQ
Can you make this without the black treacle?
Yes. The sauce will still work, but the flavor will be lighter and less deeply toffee-like.
Why did the sauce split?
That usually happens if the heat is too high when the sugar and butter are melting or if the cream goes in too quickly. Keep the heat low at the start and add the cream slowly.
How thick should the sauce be when you remove it from the heat?
It should be hot and bubbling but still pourable. It thickens a little more as it cools.
Can you use whipping cream instead of double cream?
Yes, but the sauce will be slightly thinner and less rich. If needed, simmer it a little longer after bubbling to tighten the texture.
Attribution: Recipe text from “Cookbook:Butterscotch Sauce” on Wikibooks (© Wikibooks contributors).
Source: https://en.wikibooks.org/wiki/Cookbook:Butterscotch_Sauce
License: CC BY-SA 4.0 — https://creativecommons.org/licenses/by-sa/4.0/
Additions: Editorial additions and formatting changes were made for clarity and usability. Ingredients, instructions, and other sections may be adapted where appropriate.

