This Plum Butter recipe is made in the slow cooker for an incredibly deep, rich, caramelized flavor. It’s easy to make and if canned properly will keep for up to a year. It’s delicious on bread, muffins, scones, waffles, pancakes, added to cakes and pastries, and even served with grilled meats and seafood!
Plum Butter brings back memories of the time I spent with my Oma and Opa growing up in southern Germany. Â There it’s called Pflaumenmus and you can readily find it in any grocery store next to the jams and marmalades. Â My Oma used to make Kartoffelpuffer (potato pancakes) and we would eat them with apple sauce (Apfelmus) or Pflaumenmus. Â She would also use it as a filling for one of my favorite Swabian dishes, Dampfnudeln: Â Sweet yeast dumplings filled with fruit and served drizzled with brown butter and hot vanilla custard.
I would imagine plum butter or something similar is made wherever plums grow, but for me it will always be associated with Germany.
This version is for the slow cooker but in Germany plum butter is most commonly made by baking it in the oven in a heavy pot with lid closed, usually around 350 F for 2-3 hours.  The oven method produces a little different texture, a slightly more jam-like consistency versus the consistency of apple butter.  I’ve made it both ways and both are excellent.  For the sake of convenience I usually use the slow cooker.  I also like the deeper caramelization that takes place through the lengthy slow cooking process.
The longer you cook the plum butter the deeper the flavor will be; it will develop a rich caramelized flavor over time. Â I’ll often cook it for 20 hours on LOW (yes, 20), then remove the lid and puree the plum with an immersion blender, and leave the lid open as it simmers for another 4-5 hours until quite a bit of the liquid has evaporated and the plum butter is thickened.
Alternatively, you can cook it on HIGH for about 4 hours, blend it, and then leave the lid open (still on HIGH) for another couple of hours until thickened. Â The LOW and HIGH routes both produce excellent results.
A note on sugar: Â The plums themselves can be safely canned without the addition of any sugar (most fruits, including plums have enough acidity to be safely canned without anything added to them), so that means you can freely use as much or as little sugar as you prefer.
Really, there are no rules here and no matter which route you take – slow cooker on low vs. slow cooker on high vs. oven vs. sugar or no sugar – it’s going to taste delicious!
Italian plums (aka, European plums) are used for plum butter in Germany. Â Unlike all other varieties of plums, Italian plums are especially suitable for cooking and develop a nice, complex flavor in the process. Â Their season is very short, usually September through early October, so take advantage of them while you can.
We’re very fortunate to have 3 Italian plum trees and I’ve been working up a storm in our kitchen using the plums every which way (more plum recipes to come!). Â Making plum butter is a great way to preserve them so you can enjoy their flavor throughout the year.
Plum Butter Recipe
Let’s get started!
Slice the plums in half and remove the pits. Â Place the plums in the slow cooker.
Stir in the sugar, cinnamon and cloves.
Cook either on LOW for at least 10 hours or on HIGH for at least 4 hours until the plums are very soft.
Use an immersion blender (or transfer to a blender, puree and return to the slow cooker) to puree the plum butter until smooth. Â If you prefer it a little chunky, blend until the desired texture is achieved.
Continue to simmer the plum butter, this time with the lid opened, until the plum butter is reduced in volume to a spreadable texture, approximately 5-6 more hours on LOW or 3-4 hours on HIGH.
The longer you simmer the plum butter the more deeply caramelized it will be. Â If you’re going to simmer it for a much longer time, I recommend doing so on LOW to prevent burning.
Once it’s reached the desired consistency, taste it. Â You can add more sugar at this point if you prefer and let it simmer until the sugar is dissolved.
Enjoy!
Spread this on toast, bagels, muffins or add it to a savory glaze for chicken or incorporated in your favorite BBQ sauce.
Plum Butter (Pflaumenmus)
Ingredients
- 6 pound Italian plums ,halved and pits removed
- 4 cups sugar ,or combination of white and brown sugar
- 1 1/2 teaspoons ground cinnamon
- 1/2 teaspoon ground cloves
Instructions
- Place the plums in the slow cooker. Stir in the sugar, cinnamon and cloves. Cook either on LOW for at least 10 hours or on HIGH for at least 4 hours until the plums are very soft.Use an immersion blender (or transfer to a blender, puree and return to the slow cooker) to puree the plum butter until smooth. If you prefer it a little chunky, blend until the desired texture is achieved.
- Continue to simmer the plum butter, this time with the lid opened, until the plum butter is reduced in volume to a spreadable texture, approximately 5-6 more hours on LOW or 3-4 hours on HIGH. (Note: The longer you simmer the plum butter the more deeply caramelized it will be. If you're going to simmer it for a much longer time, I recommend doing so on LOW to prevent burning. I’ll often simmer it with the lid closed for up to 20 hours and then open the lid, puree it, and simmer for another 5-6 hours until thickened.) Once it's reached the desired consistency, taste it. You can add more sugar at this point if you prefer and let it simmer until the sugar is dissolved.
- For Canning: Pour the hot plum butter into sterilized jars leaving 1/4 inch headspace. Wipe the rim and secure the lids. Boil in a water bath canner for 10 minutes. Remove the jars and let them sit undisturbed for 24 hours before transferring them to a cool, dark place for long-term storage. Will keep opened in the fridge for up to 2 months.Makes approximately 4-5 pints depending on how long you cook and reduce the plum butter.
- Spread this on toast, bagels, muffins, incorporate it into your favorite BBQ sauce or savory chicken/pork glaze.
Nutrition
Be sure to also check out our Caramel Pear Butter!
Marquita Sozio says
I love Italian prune plums. I live in Texas and rarely see them though. Do you have any idea who carries them Here? Thanks!
Dee Dee (My Midlife Kitchen) says
Girl, you and those plums! So beautiful. And this version of the plum butter looks so silky and luscious. I had never thought to put this on Kartoffelpuffer–I’ll have to do it next time, for sure!
Krista says
What a great use of plums! I am going to have to make this!
Ashley @ Wishes & Dishes says
This se s well worth the 20 hours! I love plums!
Kelly @ Nosh and Nourish says
I’m so jealous of your plum trees!!! What a harvest. This jam/butter looks deeeeeeeeelish :)
Jessica - The Novice Chef says
I’ve never thought to make plum butter! I am totally intrigued by this!
Laura at I Heart Naptime says
I’ve never had plum butter before — I can’t wait to make this!
Julie @ Texan New Yorker says
This is so cool! We all know apple butter, but somehow it never occurs to me that other fruits make great fruit butters too! I can get these plums in my local grocery store (right now anyways!).
Carolyn says
That is gorgeous! My neighbour brought over a ton of plums, I wish I’d thought to do this with them!
Meg @ With Salt and Wit says
I couldn’t think of anything better to do with a plum!
Gil says
Plum liquor
Dee says
This sounds delicious, and I love that you can make it in the Crock-Pot!
Sandi (@fearless_dining) says
This sauce looks so good…I can’t wait to try it.
carrie @ frugal foodie mama says
This is such a great way to preserve plums! And I love that you made this plum butter in the slow cooker. :)
Sinead Ledwidge says
Hi,I’ve never heard of Plum butter but that recipe sounds delicious.Is there such a thing as peach butter?they are in my local shops at the moment and such good value
Kimberly @ The Daring Gourmet says
Yes, there is, Sinead! In fact, I just made peach butter three weeks ago. The process is almost identical. I’m also going to be posting my recipe for pear butter and pear-peach butter here shortly.
Sinead Ledwidge says
That’s great thanks.I’m off to the shops 😉
Kathy McLain says
Hi! I can’t locate the pear or peach butter recipes.. Did you e
ver post them?? We have
pears and need to do something with them! Thanks very much!
Kimberly @ The Daring Gourmet says
Hi Kathy, here you go! https://www.daringgourmet.com/caramel-pear-butter/ Enjoy those pears!
Rebecca @ Strength and Sunshine says
Love that you can easily make this in the slow cooker! Plums have always been a favorite of mine! So simple, but delicious!