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    Home » Season » Holiday & Special Occasions

    Published: Feb 6, 2019 · Modified: Apr 14, 2022 by Rebecca Blackwell · This post may contain affiliate links · 35 Comments

    Caramel Rum Sauce

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    Decadent Rum Spiked Caramel Sauce

    This caramel rum sauce would make shoe leather taste like a gourmet treat. It really is that good.

    Salted Caramel Rum Sauce

    Honestly, I generally make a double batch of this caramel sauce and keep it in the jar in the refrigerator, ready to pour over anything that strikes my fancy at any time.

    Like Banana Crumb Cake, or Best Ever Carrot Cake with Caramel Rum Sauce, for example. It does take a fair amount of self control to not just eat it out of the jar with a spoon, but if you can manage it, it's pretty awesome stuff to have on hand.

    Short Cut Caramel Rum Sauce

    If you don't have the time or the inclination to make this sauce from scratch, you can just buy a jar or two of caramel sauce (ice cream topping), heat it in a sauce pan on the stove and add some rum. The result won't be quite as rich, but still absolutely delicious.

    A jar of salted caramel rum sauce.
    • {Note} Caramel Rum Sauce is a Building Block Recipe. Building Blocks are tried-and-true recipes that I find myself coming back to time and time again, sometimes to make them exactly as is, and sometimes as a starting point for something new. -> More Building Block Recipes. 

    If you give this recipe a try, let me know! Leave a comment, rate it, or take a picture and tag it #ofbatteranddough on Instagram.

    Happy baking!

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    A jar of salted caramel rum sauce.

    Caramel Rum Sauce


    ★★★★★

    5 from 5 reviews

    • Author: Rebecca Blackwell
    Print Recipe
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    Ingredients

    • 3 cups heavy cream
    • 2 cups granulated sugar
    • ¾ cup corn syrup
    • 2 tsp kosher salt
    • 1 tsp pure vanilla extract
    • ½ cup Rum - or more! (I usually use dark rum, but light works too)

    Instructions

    1. In a medium, heavy bottom saucepan, heat the cream to almost boiling – bubbles will start to appear around the side of the pan and the surface will get a bit “rumbly”. Turn down the heat to low and keep warm.
    2. In a large heavy bottom saucepan, add 1 cup of the sugar, the corn syrup, and salt. Stir to moisten the sugar and then cook without stirring over medium high heat just until the sugar starts to turn golden. If you notice that the syrup is quickly turning brown in one spot, but the rest is not browning at all, grip both sides of the pan and swirl the syrup around to distribute the caramelizing sugar before it burns. Cook until all the syrup is a light golden color – somewhere between the color of straw and milk chocolate.
    3. Turn the heat down to medium-low and add the remaining cup of sugar in three additions, stirring constantly, allowing each addition to melt before adding more. The sauce will continue to darken in color. Cook, stirring constantly, until the sauce is a deep amber color. Watch the heat in order to prevent the sugar from burning. The sauce should steadily darken in color, but if it begins to smoke at all, immediately remove it from the heat, stirring vigorously, and lower the burner heat. Return the pan to the burner and continue. If the sugar does turn black and burn, there’s no other option except to start over.
    4. Turn the heat up to medium and add the warm cream in three additions. The cream will cause the syrup to bubble up significantly – stir constantly and be very careful to not let the hot steam burn you. Simmer for a minute or two between each addition of cream to reduce slightly. Once all the cream has been added, continue to cook, stirring constantly, until it forms a thick syrup. If you draw your finger across the back of your spoon, it will hold the line.
    5. Remove from the heat and stir in the vanilla and rum. Taste and add more rum if you like. Pour into a container and let cool completely. The caramel sauce will keep in the refrigerator for up to 6 months.

    Did you make this recipe?

    Tag @ofbatteranddough on Instagram and hashtag it #ofbatteranddough

    Salted Caramel Rum Sauce

    © Of Batter and Dough. All images & content are copyright protected. Please do not use my images without prior permission. If you want to republish this recipe, please re-write the recipe in your own words, or link back to this post for the recipe. Some of the links above are affiliate links, which pay me a small commission for my referral at no extra cost to you! Thank you for supporting Of Batter and Dough.

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    Comments

    1. Gary Roush says

      January 25, 2022 at 1:25 pm

      My caramel tastes wonderful, but it’s very runny. Is there any way to thicken it?

      What does, “If you draw your finger across the back of your spoon, it will hold the line.”, mean? And how long is it supposed to cook before you take it off the stove?

      Thank you. And thanks for posting your recipes.

      Reply
      • Rebecca Blackwell says

        January 26, 2022 at 10:05 am

        I'm glad it tastes good at least! 🙂 You can thicken it up with a bit of cornstarch if you like. Here's what to do: For every cup of caramel sauce, use 1 teaspoon of cornstarch that's been dissolved in 1 tsp of water. Heat the caramel sauce in a saucepan. When it begins to simmer, slowly add the cornstarch that's been dissolved in water, stirring the caramel constantly as you add the cornstarch. Continue to simmer the caramel, stirring constantly, until it thickens. If it hasn't thickened in about 5 minutes after adding the cornstarch, remove the caramel from the heat, mix up a bit more cornstarch and water and repeat the process of bringing the caramel sauce to a simmer and gradually adding cornstarch.

        Let me know if that works for you! And, of course, let me know if you have any other questions.

        To answer your question about drawing your finger across the back of the spoon: Lift your spoon from the caramel sauce. There should be a coating of caramel sauce that holds on to the back of the spoon. Carefully (it will be hot) draw your finger across the back of the spoon. The line created in the caramel sauce by your finger should stay put. If caramel immediately begins to run through that line, the caramel is still too thin. Does that help?

        Reply
    2. Gary Roush says

      January 24, 2022 at 12:10 am

      Well the entire recipe intrigued me, but I was all set for my regular carrot cake and saw your caramel recipe. Everything went fine until the end. First, I didn’t understand what you meant about wiping my finger on the back of a spoon, but more importantly I had no idea how long to cook this. After an hour and 45 minutes I called it a night. It never reached the consistency of a thick syrup. In fact, by the time I added the warm cream the mixture never regained any thickness. After the hour and 45 I turned of the stove, added the vanilla and rum, poured it into a few vessels and I’m now heading to bed. Perhaps it will surprise me, but a little more specificity of what to do and what to expect at the end would be helpful.

      Thank you so much for the time and effort you put into posting your recipes.

      Reply
      • Rebecca Blackwell says

        January 24, 2022 at 10:44 am

        Hi Gary! Thank you for reaching out! I would love to help troubleshoot this with you! After cooking this caramel sauce for an hour and 45 minutes, I'm honestly surprised there was any sauce left in the pan. The caramel sauce thickens because, as it simmers, some of the water evaporates from the sauce. It sounds like that wasn't happening for you. After that much simmering, I would suspect that all the water in the sauce would have evaporated. Was the sauce simmering the whole time you were cooking it? How is it this morning? Did it thicken overnight in the refrigerator?

        Reply
    3. Beth K says

      December 16, 2021 at 2:17 pm

      One question: my sauce came out the same color as yours. It tastes slightly bitter though. I had no issues with burning. Did I possibly cook it just a bit too long or is this sauce supposed to be slightly bitter? Thanks for your feedback!

      Reply
      • Rebecca Blackwell says

        December 19, 2021 at 10:28 am

        Hi Beth! My guess is that the sugar burned slightly towards the beginning of making this sauce. In step #2, when cooking the sugar and corn syrup, if there are patches of sugar that are getting super dark brown, that's evidence of burning. Since you mention that the bitter taste was "slight", that suggests that just a bit of the sugar burned, which is easy to do when caramelizing it. Do you think that might have been the issue?

        Reply
    4. Nikki P says

      August 02, 2021 at 1:13 pm

      Question...one person asked if the amount of butter could be reduced. You said to try it and if it is grainy add a bit of butter. I do not see butter listed in the ingredients. Is it missing or was the question about another recipe and I missed the first part.
      And can this be made with Amaretto, Bourbon or Kahlua? I recently followed another recipe and used Bourbon, it was good but separated I do not see comments about that so would love to try with another flavor profile.

      Reply
      • Rebecca Blackwell says

        August 02, 2021 at 3:12 pm

        Hi Nikki! I've updated the recipe since the butter comments. Fat content is important to smooth, creamy caramel sauce. The fat can come from either butter or cream, or a combination of both. After testing several ratios of butter and cream, I found more consistent results with using all cream rather than a combination of butter and cream, so I updated the recipe to use all cream. Maybe I should delete that comment so it doesn't confuse people. 🙂

        Yes! You could absolutely use Amaretto, Bourbon, Kahlua, or any kind of liquor in this sauce! I've used Bourbon and whisky and love the idea of trying it with Amaretto. I was also thinking about trying it with a bit of Limoncello one of these days. Lemon and caramel is one of my favorite flavor combinations, so I think I'd love it.

        Please let me know if you have any other questions! And, I'd love to hear what you think about whatever liquor you end up using! xo

        Reply
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    Rebecca Blackwell

    Hi! I'm Rebecca, a baker, recipe developer, food photographer, and full time RV nomad.

    I’ve been baking for 25 years, both professionally and just for the sheer pleasure of it. In 2013, I launched this blog as a way to share my most tested, trusted, and much-loved recipes.

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