Skip to Content

Rum Sauce a.k.a. Rum & Butter Sauce or Rum Caramel Sauce

This Rum Sauce a.k.a. Rum & Butter Sauce or Rum Caramel Sauce goes by a few names. Either way it is an outstandingly delicious addition to  desserts like bread pudding, apple pie or ice cream!

Rum Sauce a.k.a. Rum & Butter Sauce or Rum Caramel Sauce

Rum & Butter Sauce

I recently updated our old family favourite recipe for Rum Raisin Bread Pudding and part of the update was the addition of this delicious sauce. I almost always refer to it as a rum & butter sauce because in my opinion, the real dairy butter is an essential flavour component. 

Over the years I’ve seen several similar recipes, sometimes called Rum Caramel Sauce or Rum & Butter Sauce. At their heart of all those recipes though, the concept is still the same; a well made caramel sauce with the addition of dark rum.

My daughter Olivia was home from University in Toronto last weekend for mid term break, so we held a big family dinner with about 12 of us in the extended family.

The bread pudding was a big hit for dessert, but the real showstopper was this incredible rum & butter sauce. As Spouse says, “You should be allowed to drink that stuff through a straw!”

This sauce is the perfect compliment to many old fashioned desserts like traditional steamed puddings, Figgy Duff and even your Christmas Plum Pudding. Don’t stop there though, try it on warm Gingerbread Cake or on our Blueberry Molasses Gingerbread Cake

butter photographed on a wooden cutting board.

Use only real dairy butter.

The last time I baked a Homemade Apple Pie I served it with vanilla bean ice cream and a drizzle of this rum caramel sauce. I can’t even begin to describe how incredibly, perfectly delectable that was.

You’re thinking about that right now aren’t you? Believe me, it is even better than you are imagining.

So call it rum sauce, rum & butter sauce or rum caramel sauce, it doesn’t matter. You’ll want to make it again and again.

Like this Rum Sauce recipe?

You’ll find hundreds of other indulgent recipes in our Desserts Category and in our Cakes & Pies Category.

It’s easy to keep up with the latest home style cooking & baking ideas from Rock Recipes. Be sure to follow Rock Recipes Facebook Page and follow us on Instagram.

Plus you’ll see daily recipe suggestions from decadent desserts to quick delicious weekday meals too. 

Rum Sauce a.k.a. Rum & Butter Sauce or Rum Caramel Sauce

Rum Sauce

You can also sign up for our FREE newsletter to know immediately when we add new recipes. You’ll also get weekly suggestions for great family friendly  meals and desserts too!

Rock Recipes a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for us to earn fees by linking to and affiliated sites. Our product recommendations are almost exclusively for those we currently use or have used in the past.

Rum Sauce a.k.a. Rum & Butter Sauce or Rum Caramel Sauce
Yield: 3 cups sauce

Rum Sauce

Prep Time: 15 minutes
Cook Time: 15 minutes
Total Time: 30 minutes

This Rum Sauce a.k.a. Rum & Butter Sauce or Rum Caramel Sauce goes by a few names but either way it is an outstandingly delicious addition to desserts like bread pudding, apple pie or ice cream!


  • 2 cups sugar
  • ⅔ cup butter cut in small cubes
  • 4 tbsp water
  • 1 cup whipping cream
  • 1/4 to 1/2 cup dark rum, depending on how strongly flavoured you like it. I use 1/2 cup.


  1. Begin by mixing the sugar and water in a large saucepan. NOTE: I use a large saucepan of about 3 quarts or larger because the sugar foams up when you add the butter and cream so make sure you have a large enough pot.
  2. Boil the sugar and water over medium heat until the mixture begins to turn a light to medium amber color. The real skill in making caramel sauce does come with experience and knowing the point at which the color is perfect. Good advice for beginners is that it is better to be a little too light in color rather than a little too dark because too dark a caramel can often taste a little burnt. It is very easy to burn this mixture which can happen very quickly once the proper color is achieved, so have your butter and cream at the ready, as timing is crucial for this recipe.
  3. Do not stir the boiling sugar, this can cause it to crystallize. If you find the sugar starts to crystallize, use a pastry brush to brush water around the inside edge of the pot as it boils. You may have to do this several times. Carefully swirling the pan occasionally is also helpful to avoid crystallization of the sugar.
  4. When the color is right, quickly add the butter and stir quickly until the butter is melted. Remove from the heat immediately and pour in the whipping cream, stirring constantly until the sauce is uniformly smooth.
  5. Finally, quickly whisk in the rum.
  6. Cool completely. Store in an airtight plastic container or in a mason jar. This sauce is fantastic with almost any apple dessert or for great sundaes.


You will want to prepare the ingredients and have them at the ready. Timing is very important in any good caramel sauce, so having the butter and cream ready at the crucial point is critical to the success of your sauce.

You will also want to be very careful when preparing caramel sauce; when the sugar syrup hits the right stage to add the butter and cream it will be over 300 degrees F so it is important to take particular care.

It is also very important to use a proper sized pot. Although the recipe only makes about 3 cups, you will need a 2½ to 3 quart/liter heavy bottomed saucepan because the sugar syrup will foam up considerably and produce a considerable amount of steam when the butter is added and again when the cream is added.

These safety tips are not meant to deter, it's just good advice to make these sorts of things when you can take the time without distractions and give it your full attention. A successful caramel sauce is also one that has been given careful attention. With a little practice you will be a caramel ace in no time.

This sauce, minus the rum is my regular recipe for caramel sauce which is also incredibly delicious.

Changing up the spirits in this recipe can make for other delicious sauces. Brandy, cognac or whiskey can also be used. Bourbon as a substitute makes a bourbon caramel sauce that is exceptionally delicious on apple desserts in particular.

Nutrition Information



Serving Size

1 grams

Amount Per Serving Unsaturated Fat 0g

Did you like this recipe?

Do you love our "Real food recipes for real people'? Share the recipe on Facebook to let your friends know about us. They'll thank you for it.

This site uses Akismet to reduce spam. Learn how your comment data is processed.


Sunday 16th of December 2018

Are you using white sugar or brown?

Barry C. Parsons

Thursday 20th of December 2018

White sugar. You need to see the color change.


Friday 14th of December 2018

Made this for an art gallery party to go with a brown sugar bread pudding. It was fantastic. I usually do a lemon sauce and sometimes a dulce de leche sauce, but this one is equally good and I am very hard to please. Thank you.

Mark McCurdy

Saturday 13th of October 2018

Hi Barry, Other recipes I've read (not made!)...use a little salt and maybe a little vanilla extract. Why don't you use salt? Would adding the vanilla just be overkill? I AM gonna make this very soon and would appreciate your thoughts. Cheers, Mark

Barry C. Parsons

Thursday 25th of October 2018

You can add salt for salted caramel if you like. I use salted butter, so that's enough for my taste. Vanilla not overkill, it's a delicious addition.


Saturday 22nd of September 2018

What is the serving piece that you have the sauce in?

Barry C. Parsons

Friday 12th of October 2018

It's just a glass pitcher/jug.


Friday 4th of May 2018

Can you leave it in refrigerated overnight. I accidentally left it out.

Barry C. Parsons

Thursday 17th of May 2018

It really should be fine. Between the sugar and the rum it should be well preserved. :)

This site uses Akismet to reduce spam. Learn how your comment data is processed.

Skip to Recipe

Sharing is Caring

Help spread the word. You're awesome for doing it!