Plum Barbecue Sauce Canning Recipe: Sweet and Smoky Preservation

This plum barbecue sauce captures the perfect balance of sweet, tangy, and smoky flavors for your pantry. Preserving it through canning ensures you’ll have this versatile sauce ready all year.

I developed this recipe to elevate grilled meats and sandwiches with a unique fruit-based twist. The process is straightforward, delivering a thick, rich sauce that keeps beautifully.

Ingredients for Plum Barbecue Sauce Canning

Nine simple ingredients transform plums into a rich, smoky barbecue sauce ready for canning.

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The plums are everything here. Look for ripe but firm plums—they’ll hold up better during cooking. Farmers markets are ideal, but any grocery store with a good produce section will work just fine. I always grab an extra pound or two (frozen works in a pinch) to adjust sweetness. Organic plums aren’t necessary, but avoid ones with thick skins—they can make the sauce bitter.

No fresh plums? Frozen plums at equal quantity work great—just thaw them first. Swap molasses for maple syrup or honey if needed (though honey isn’t vegan, so stick with maple for strict diets). Missing smoked paprika? Chipotle powder in a pinch, but use half the amount. The tomato paste can be subbed with crushed tomatoes, but cook it down longer to thicken.

This sauce keeps beautifully. Canned properly, it’ll last 12-18 months in a cool, dark place. Once opened, store in the fridge for up to 2 weeks. The flavor deepens over time, so try to wait at least a week before digging in.

Step-by-Step Instructions for Plum Barbecue Sauce Canning

Transform fresh plums into a rich, smoky barbecue sauce that preserves beautifully for later use.

Step 1: Prepare and Cook the Plums

Begin by pitting and chopping the 3 lb Fresh Plums into small pieces. I like to leave the skins on for extra texture and color. Place them in a large, heavy-bottomed pot—this prevents burning as the fruit breaks down.

Add the 1 cup Apple Cider Vinegar to the pot with the plums. Bring the mixture to a gentle boil over medium-high heat, then reduce to a simmer. Cook for 15-20 minutes, stirring occasionally, until the plums soften and break apart easily with a wooden spoon.

Step 2: Incorporate Sweet and Savory Elements

Stir in the 1.5 cups Brown Sugar, 0.5 cup Tomato Paste, and 0.25 cup Molasses. The tomato paste adds body, while the molasses deepens the flavor with its robust, slightly bitter notes. Use a whisk to blend everything smoothly.

Now add the 2 tbsp Worcestershire Sauce, 1 tbsp Smoked Paprika, 1 tbsp Onion Powder, 1 tbsp Garlic Powder, and 1 tsp Salt. These spices and seasonings build the sauce’s signature complexity. Simmer for another 10-12 minutes, stirring frequently to prevent sticking.

Step 3: Blend and Adjust Consistency

Once the mixture thickens slightly, remove it from the heat and let it cool for 5 minutes. Then, use an immersion blender to purée the sauce until smooth. If you prefer a chunkier texture, pulse it a few times instead of fully blending.

Taste and adjust the seasoning if needed. The sauce should balance sweet, tangy, and smoky flavors. If it’s too thick, thin it with a splash of water or additional apple cider vinegar. If it’s too thin, return it to the heat and simmer for a few more minutes.

Step 4: Process for Canning

Ladle the hot sauce into sterilized canning jars, leaving ½ inch of headspace at the top. Remove any air bubbles by gently tapping the jars on the counter, then wipe the rims clean with a damp cloth to ensure a proper seal.

Process the jars in a water bath canner for 20 minutes. Once done, carefully remove them and place them on a towel-lined countertop to cool. You’ll hear the satisfying ping of the lids sealing as they cool—this confirms a successful preserve. Store in a cool, dark place for up to 1 year.

Common Mistakes When Making This Recipe

Skipping Sterilization

Never skip sterilizing your jars and lids, even if they look clean. I use my dishwasher’s sanitize cycle or boil them for 10 minutes. Unsterilized jars can introduce bacteria that spoil your sauce.

Overfilling Jars

Leave that ½ inch headspace—it’s critical for proper sealing. Overfilling causes sauce to seep under the lid, preventing a vacuum seal. I measure with a ruler to be precise.

Insufficient Processing Time

Stick to the full 20 minutes in the water bath. Cutting time short risks leaving harmful bacteria. The sauce must reach 212°F throughout to be safe.

Using Wrong Vinegar

Apple cider vinegar’s 5% acidity is essential for preservation. White vinegar works, but never use balsamic or rice vinegar—their lower acidity won’t preserve safely. 🔥

Ignoring pH Levels

Plums are low-acid, so the vinegar and tomato paste are non-negotiable. Test your sauce with pH strips—it must be 4.6 or lower for safe canning.

Rushing the Cooling

Let jars cool undisturbed for 12-24 hours. Moving them too soon can break the seal. That satisfying ping means success—listen for it!

Frequently Asked Questions