I've made so many varieties of jam from raspberry jam to orange marmalade and even a winter cranberry jam. Yet, this plum jam (without pectin) stands out as one of my favorite flavors! With just 30 minutes of cook time and a few in-season plums, you'll make the best summer jam!

Quick Look: Plum Jam (Without Pectin)
- Servings: About 12 servings (or ¾ cup or 225 grams)
- Kitchen Timing: 30 minutes to cook, and 1 hour to cool
- Flavor Profile: Sweet yet refreshing
- Leftover Tips: Keeps for about 2 weeks in the fridge or 2 months in the freezer.
- Skill Level: Beginner
- What You'll Learn: How to make jam from scratch without using pectin, including the most important techniques like how to cook the jam without burning and the cold plate test.
- Why You'll Love This Recipe: It makes the perfect small batch of jam. Plus, once you learn this technique, you can try other stone fruit jams like peach jam or from scratch nectarine jam.
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As a summer girl at heart, I'm in heaven during stone fruit season. We're always stocking up on plums, peaches, and nectarines.
I have to admit...sometimes my eyes are bigger than my stomach at the grocery store and I grab a few too many plums that we can't eat before they go bad.
Whenever this happens, I always love having a recipe in my back pocket that allows me to use up the fruit in a creative and fun way.
I learned this method for cooking jam without pectin in culinary school, and it's the perfect way to use up plums that are a little past their prime. Since the fruit is cooked down, you won't even be able to tell it was once a little mushy.
Make sure to join my 10 secrets to becoming a better baker guide, if you want to keep learning and growing your confidence in the kitchen.
Ingredients You Need

- Plums: Ripe, juicy plums are going to give you the best jam. You can also freeze plums and make this jam in the winter. Any variety or color of plum will work. I used red plums for this batch.
- Granulated sugar: The sugar adds the perfect touch of sweetness, and helps to achieve the correct jam texture.
- Water: The water prevents the jam from burning as it cooks.
- Lemon juice: The citrus juice adds a nice pop of acidity. You can substitute for lime or orange juice, as well.
Take a peek at the recipe card below for the exact measurements.
How To Make Plum Jam (Without Pectin)

Step 1: Before we can make the jam, we'll need to remove the skin on the plums. To do this, start by cutting an "X" in the bottom of each plum with a sharp knife.

Step 2: Bring a pot of water to a boil, then blanche the plums by cooking them for about 90 seconds.

Step 3: Immediately transfer them to an ice bath and allow them to cool until you can touch them. From here, the skin should easily peel off.

Step 4: Dice the peaches (about ½ inch or 1 cm), then add them to a saucepan along with granulated sugar, water, and lemon juice. Bring the mixture to a boil over medium high heat.

Step 5: Once boiling, reduce the heat to medium and allow the jam to cook, stirring often, until it has thickened.

Step 6: You can test that the jam is ready by using a cold plate. Place a small dollop of jam on the plate. If it stiffens, like this, the jam is ready. If you notice liquid running through the jam, it needs to cook longer.
Jessica's Expert Tips
- Storage: You can keep the jam in an airtight container in the fridge for up to 1 - 2 weeks, or freeze for 2 months.
- If you like a chunkier jam, cut the plums into larger pieces. For a smoother jam, cut the plums smaller.
- If you notice foam on top of the jam, you can skim it off with a spoon. It doesn't affect the taste, so it's up to you if this matters for presentation.
FAQs for Plum Jam
No, the recipe has not been formulated for canning.
If you overcooked the plum jam, it can become very thick and hard to spread. Don't worry, heating it in the microwave for 15 seconds after it's in the fridge will soften it up. Next time, make sure to use the cold plate test and stop cooking once the jam stiffens on the cold plate.
This happened because you didn't cook the jam long enough. If you see liquid running down the plate during the cold plate test, this is an indicator that the jam needs to cook longer.

More Jam Recipes
Love this recipe? Please leave a 5-star ⭐⭐⭐⭐⭐ rating in the recipe card below. Have questions as you're cooking? Leave a comment below, and I'll help!

Plum Jam (Without Pectin)
Equipment
- medium sized saucepan
- spoon
- chilled plate
Ingredients
- 4 ripe plums
- ½ cup granulated sugar
- ¼ cup water
- 1 tablespoon lemon juice
Instructions
- Cut a small ‘X’ at the base of each plum with a paring knife. Boil plums for 90 seconds, then place them in an ice bath until cool to the touch. Using a paring knife, peel off the outer plum skin. Roughly chop the plum flesh to a medium (½ inch or 1 cm) dice.
- Heat chopped plums, granulated sugar, water, and lemon juice over medium high heat in a medium sized saucepan until boiling.
- Reduce the heat to medium. Cook, stirring often, until the fruit has thickened. To test that the jam is thick enough, place a plate in the refrigerator until chilled. Place a small dollop of jam on the chilled plate. If the jam stiffens, it’s fully cooked. If liquid runs from the jam, it needs to continue cooking.
- Transfer jam to a small bowl and refrigerate for 1 hour until fully cooled.
- Store in an airtight container in the refrigerator for up to 1 - 2 weeks.










Tyler
This was a pretty unique jam. I really enjoyed the flavor.