As I stood in my kitchen, the sweet aroma of ripe summer plums filled the air, instantly transporting me back to childhood summers spent in my grandmother’s backyard. With just a few simple ingredients, I decided to whip up a batch of luscious slow cooker plum butter, a heavenly fruit spread that transforms those succulent plums into a velvety treat. This easy, low-sugar recipe not only preserves the seasonal sweetness but also offers an indulgent way to elevate your breakfast or desserts. Plus, it’s perfect for canning—so you can savor the taste of summer all year long! Are you ready to discover how to make this delightful spread that will have your friends and family asking for more?

Why is this plum butter a must-try?
Deliciously Rich: The luscious slow cooker plum butter boasts a velvety texture and deep flavor that elevates any meal.
Effortless Process: With minimal hands-on time, simply toss ripe plums into your slow cooker and let it work its magic.
Seasonal Delight: It’s the perfect way to use up summer plums, capturing their sweetness for delightful treats throughout the year.
Customizable Flavor: Feel free to experiment—try adding spices or swapping in other stone fruits like peaches for a unique twist!
Ideal for Gifting: Jars of this homemade goodness make thoughtful gifts for friends, showcasing your culinary skills while promoting sustainable living.
You can also explore more delicious recipes like our Peanut Butter Jelly or Garlic Butter Chicken for more home-cooked inspirations!
Luscious Slow Cooker Plum Butter Ingredients
For the Plum Butter
- Fresh, ripe plums – 8 cups; choose sweet, ripe varieties to ensure the best flavor and texture in your luscious slow cooker plum butter.
- Organic sugar – 1.5-2 cups; adjust based on your sweetness preference, but aim for a balance that complements the plums.
- Lemon juice – 1/3 cup; adds essential acidity for safe canning, though white vinegar can be used as a substitute if needed.
- Reserved pits – 5-7, tied in cheesecloth or a muslin tea bag; these infuse a delightful almond flavor during cooking and ensure safety when using.
Optional Flavor Enhancements
- Cinnamon or cloves – Add these spices to introduce warm, inviting notes to your spread.
- Other stone fruits – Substitute with peaches or apricots for a playful twist on flavor while still enjoying seasonal fruit spreads!
Step‑by‑Step Instructions for Luscious Slow Cooker Plum Butter
Step 1: Prepare the Plums
Begin by washing your fresh, ripe plums thoroughly under cool water. Carefully halve each plum and remove the pits, setting them aside. This step is essential for creating your luscious slow cooker plum butter, as using sweet and ripe plums will ensure the best flavor.
Step 2: Combine Ingredients in the Slow Cooker
Place the halved plums into your slow cooker, then add 1.5 to 2 cups of organic sugar and 1/3 cup of lemon juice. For an extra touch of flavor, gather the reserved pits in cheesecloth and add them to the mixture. Set your slow cooker to low and leave it uncovered for 8 to 10 hours, stirring occasionally until the mixture reduces by half.
Step 3: Blend the Mixture
Once the cooking time is complete and your kitchen is filled with the fragrant aroma of the luscious slow cooker plum butter, remove the cheesecloth containing the pits. Using a stick blender, puree the mixture directly in the slow cooker until smooth and velvety. If you prefer, you can transfer the mixture to a regular blender, blending until it reaches your desired consistency.
Step 4: Prepare for Canning
For those looking to can this delightful spread, start by preparing your jars. Ensure they are sterilized in boiling water or a hot dishwasher cycle. Ladle the smooth plum butter into the warm, sterilized jars, filling them to about 1/4 inch from the top, and wipe the rims clean to ensure a good seal.
Step 5: Process the Jars
If canning, process the jars in a water bath canner. Bring the water to a rolling boil, and then process half-pint jars for 10 minutes and pint jars for 15 minutes. This step is crucial to preserve your luscious slow cooker plum butter, ensuring it remains safe and delicious for months to come.
Step 6: Cool and Store
After processing, remove the jars from the canner and allow them to cool on a clean kitchen towel or wire rack. As the jars cool, you’ll hear the satisfying pop of the lids sealing. Once cooled, check the seals by pressing the center of each lid; if it doesn’t pop back, the jar is sealed properly. Store your precious plum butter in a cool, dark place for up to one year.

Expert Tips for Luscious Slow Cooker Plum Butter
• Choose Ripe Plums: Select sweet, ripe plums for the best flavor. Overripe or under-ripe plums can affect the taste of your luscious slow cooker plum butter.
• Avoid Over-Sweetening: Start with 1.5 cups of sugar and adjust later. Too much sugar may mask the natural flavor of the fruit.
• Cook Uncovered: Keeping the slow cooker uncovered helps achieve the desired thickness by allowing moisture to evaporate.
• Sterilize Jars Thoroughly: Ensure your jars are well-sterilized to prevent spoilage. Use clean, hot jars right before filling them with your plum butter.
• Check Seals Post-Cooling: Once cooled, check jar seals carefully. If the lid pops back, refrigerate immediately and consume within a few weeks to ensure freshness.
• Experiment with Flavors: Don’t hesitate to add spices like cinnamon or cloves! They can transform your luscious slow cooker plum butter into a seasonal sensation.
What to Serve with Luscious Slow Cooker Plum Butter
Imagine starting your day with homemade delights that perfectly complement the rich, velvety taste of your plum butter.
- Fluffy Toast: The warm crunch of toasted bread enhances the smoothness of plum butter, making it a delicious morning treat.
- Creamy Greek Yogurt: Add a spoonful of plum butter to Greek yogurt for a sweet and tangy breakfast bowl, perfect for busy days.
- Buttermilk Biscuits: Our fluffy biscuits provide a buttery contrast, while the sweet plum butter adds a delicious fruitiness that elevates your brunch.
- Vanilla Ice Cream: A scoop of ice cream topped with luscious plum butter becomes a decadent dessert, bringing a delightful summer flavor to every bite.
- Oatmeal or Porridge: Stirring in plum butter to your morning oatmeal creates a vibrant, fruity boost of flavor, giving a cozy, homey touch.
- Cheese Plate: Pair with creamy Brie or sharp cheddar for a gourmet cheese board; the sweet and savory combination is simply irresistible.
- Herbal Tea or Sparkling Water: A warm cup of chamomile or a refreshing sparkling water enhances the experience, cleansing the palate between bites.
- Ginger Snap Cookies: Serve these alongside and watch them charm guests with a zesty marriage of flavors, perfect for tea time or gatherings.
Make Ahead Options
Making luscious slow cooker plum butter is a breeze for busy home cooks! You can prepare the plums (halved and pitted) and combine them with sugar and lemon juice up to 24 hours in advance, then refrigerate the mixture in an airtight container. This not only saves time, but also allows the flavors to meld beautifully. When you’re ready to make the plum butter, simply pour the chilled mixture into your slow cooker with the reserved pits and let it cook on low for 8-10 hours. Just remember to stir occasionally while cooking and blend until smooth before following the canning instructions. With these make-ahead tips, you’ll have a luscious spread that feels effortless!
Luscious Slow Cooker Plum Butter Variations
Feel free to embrace your creativity and personalize this delightful plum butter through a variety of enjoyable swaps and tweaks!
- Other Fruits: Substitute plums with peaches or apricots for a unique flavor while still tasting summer’s sweetness.
- Spiced Twist: Add a pinch of cinnamon or ground cloves for a cozy fall feeling in every spread.
- Sweetness Adjustment: Reduce the sugar for a low-sugar version—just keep in mind that this may shorten shelf life.
- Citrus Infusion: Swap lemon juice for orange juice for a zesty, bright flavor that adds an unexpected twist.
- Nutty Flavor: Toss in a splash of almond extract before blending for a deeper, nutty dimension to your luscious spread.
- Herbal Note: Infuse with fresh rosemary or thyme during cooking, then remove before blending to create an aromatic experience.
- Spicy Kick: Add a few dashes of cayenne or jalapeño pepper for a surprising heat element.
- Freezer Friendly: If canning isn’t your thing, simply cool and freeze the plum butter in manageable portions for year-round enjoyment.
If you’re looking for more kitchen inspiration, why not try our hearty Brown Butter Mashed or the decadent Chocolate Peanut Butter recipes that everyone will love!
Storage Tips for Luscious Slow Cooker Plum Butter
Cool Storage: Let your jars cool completely after processing, then store them in a cool, dark cupboard away from sunlight to maintain quality for up to one year.
Refrigeration: After opening a jar, refrigerate the luscious slow cooker plum butter and consume within 2-3 weeks for the best freshness and flavor.
Freezing Option: If you prefer to freeze, cool the plum butter entirely before transferring it to airtight containers or freezer bags. It can be frozen for up to 6 months without losing taste.
Sealing Check: Ensure each sealed lid is concave; if it pops when pressed, refrigerate and use soon to enjoy the rich flavors of your fruit spread.

Luscious Slow Cooker Plum Butter Recipe FAQs
How do I select ripe plums for the best plum butter?
Absolutely! When choosing plums, look for ones that are sweet and fully ripe. They should feel slightly soft to the touch without being overly mushy. Avoid fruits with dark spots or blemishes, as these can indicate overripeness or spoilage.
How should I store homemade plum butter?
Once your luscious slow cooker plum butter is cooled, store sealed jars in a cool, dark cupboard for up to one year. If opened, refrigerate and enjoy within 2-3 weeks for optimal freshness and flavor. Remember, a cool, dark place is key to keeping it delicious!
Can I freeze plum butter, and how should I do it?
Yes, you can absolutely freeze your plum butter! Allow it to cool completely, then transfer it into airtight containers or freezer bags. Make sure to leave a little room at the top for expansion. It can be frozen for up to 6 months while maintaining its rich flavor—just be sure to label the containers!
What if my plum butter is too thin?
If your luscious slow cooker plum butter turns out thinner than desired, don’t worry! You can thicken it by blending in a bit of clear Jel, following the package instructions. Generally, start with a tablespoon or two, mix it in well, and let it cook a little longer until thickened.
Are there any dietary considerations for this recipe?
Very! This plum butter is naturally low in sugar and can be modified to suit various dietary needs. If you’re concerned about sugar, feel free to use a sugar alternative that measures similarly, but be aware that it may affect the preservation quality. As always, check with your loved ones about any allergies, especially concerning fruit pits.
How do I know if my canning seals are working properly?
To check if your seals are secure after canning your plum butter, gently press the center of each lid. If it stays down and doesn’t pop back, your jar is sealed! If it does pop back, refrigerate the jar and consume your delicious spread within a few weeks.

Luscious Slow Cooker Plum Butter: A Velvety Spread to Savor
Ingredients
Equipment
Method
- Wash the fresh, ripe plums thoroughly and halve each plum, removing the pits.
- Combine halved plums, organic sugar, lemon juice, and reserved pits in the slow cooker.
- Cook on low, uncovered, for 8 to 10 hours, stirring occasionally.
- After cooking, remove the cheesecloth containing the pits and puree the mixture until smooth.
- Prepare sterilized jars and ladle the plum butter into jars, filling to about 1/4 inch from the top.
- Process jars in a boiling water bath and cool completely after processing.
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