Blueberry Jam Recipe
This blueberry jam recipe is sweet, glossy, fruity, and easy to make with fresh or frozen blueberries. It is a simple small-batch refrigerator jam made with blueberries, sugar, lemon juice, lemon zest, and a pinch of salt. No complicated canning is needed.
Homemade blueberry jam tastes bright and fresh, with a deep berry flavor and beautiful purple-blue color. It is perfect for toast, biscuits, pancakes, waffles, yogurt, oatmeal, muffins, ice cream, cheesecake, peanut butter sandwiches, thumbprint cookies, and dessert toppings.
This recipe is made without added pectin. The blueberries cook down naturally with sugar and lemon juice until thick and jammy. The result is a soft, spoonable jam that thickens more as it cools.
If you have extra blueberries and want an easy way to use them before they soften, this blueberry jam is a perfect recipe to save.
Why You’ll Love This Blueberry Jam
You will love this blueberry jam because it is quick, simple, and full of real blueberry flavor. It uses basic ingredients and does not require special canning equipment.
This is a small-batch recipe, so you do not need a huge amount of berries. It is perfect when you have a few cups of blueberries from the store, farmers market, or freezer.
The flavor is sweet, slightly tart, and fresh. Lemon juice brightens the jam and helps balance the sugar, while lemon zest adds a clean citrus flavor.
This jam is also very useful. Keep a jar in the refrigerator and use it for breakfasts, snacks, desserts, baking, and sweet toppings.
Ingredients
- 4 cups fresh or frozen blueberries
- 1 cup granulated sugar
- 2 tablespoons fresh lemon juice
- 1 teaspoon lemon zest
- 1/8 teaspoon salt
- 1/2 teaspoon vanilla extract, optional
Ingredient Notes
Blueberries are the main ingredient. Fresh blueberries give a bright flavor, but frozen blueberries work well too.
Sugar sweetens the jam and helps it thicken. You can reduce it slightly, but using too little sugar can make the jam softer.
Fresh lemon juice balances the sweetness and helps the jam set naturally.
Lemon zest adds extra brightness and makes the blueberry flavor taste fresher.
Salt may seem small, but it helps balance the sweetness.
Vanilla extract is optional. Add it at the end for a softer dessert-like flavor.
Fresh Vs Frozen Blueberries
Fresh blueberries are great when they are in season. They give the jam a fresh, clean flavor and nice texture.
Frozen blueberries are convenient and work very well. Add them directly to the pan or thaw them first. Frozen berries may release more liquid, so the jam may need a few extra minutes to thicken.
How To Make Blueberry Jam
Step 1: Add Ingredients To Pan
Add blueberries, sugar, lemon juice, lemon zest, and salt to a medium saucepan.
Stir everything together.
Step 2: Mash The Blueberries
Use a fork or potato masher to lightly mash some of the berries. Leave some whole if you like a chunky jam.
Step 3: Cook The Jam
Place the saucepan over medium heat. Cook, stirring often, until the sugar dissolves and the blueberries begin to release juice.
Bring the mixture to a gentle boil, then reduce the heat slightly.
Step 4: Simmer Until Thick
Simmer for 18 to 25 minutes, stirring often. The jam will darken, bubble, and become glossy.
As it thickens, stir more frequently so it does not stick to the bottom of the pan.
Step 5: Test The Jam
Place a small spoonful of jam on a chilled plate. Let it sit for one minute, then run your finger through it. If it wrinkles slightly or holds a line, it is ready.
If it runs back together quickly, cook for a few more minutes and test again.
Step 6: Add Vanilla
Remove the pan from heat and stir in vanilla extract if using.
Step 7: Jar And Chill
Spoon the hot jam into clean glass jars. Let it cool, cover with lids, and refrigerate.
The jam will thicken more as it cools.
Tips For The Best Blueberry Jam
Use ripe blueberries for the best flavor.
Do not skip lemon juice because it balances the sweetness.
Mash the berries lightly for a thicker texture.
Stir often while cooking so the jam does not burn.
Use a wide saucepan if possible so moisture evaporates faster.
Let the jam cool before judging the final thickness.
For smoother jam, blend part of the cooked mixture before jarring.
How Long Does Blueberry Jam Last?
This refrigerator blueberry jam lasts about 2 to 3 weeks in the refrigerator when stored in clean jars.
Always use a clean spoon when taking jam from the jar.
Can You Freeze Blueberry Jam?
Yes. Let the jam cool completely, then transfer it to freezer-safe containers. Leave a little space at the top for expansion.
Freeze for up to 3 months. Thaw in the refrigerator before using.
What To Eat With Blueberry Jam
Serve blueberry jam with:
- Toast
- Biscuits
- English muffins
- Pancakes
- Waffles
- French toast
- Yogurt
- Oatmeal
- Ice cream
- Cheesecake
- Pound cake
- Muffins
- Scones
- Peanut butter sandwiches
- Thumbprint cookies
- Crepes
- Cream cheese and crackers
Blueberry Jam Variations
Blueberry Vanilla Jam
Add vanilla extract after cooking for a soft bakery-style flavor.
Blueberry Lemon Jam
Add extra lemon zest for a brighter citrus flavor.
Blueberry Peach Jam
Replace 1 cup blueberries with chopped peaches for a summer fruit blend.
Blueberry Raspberry Jam
Use half blueberries and half raspberries for a sweet-tart berry jam.
Blueberry Chia Jam
For a quick softer jam, stir in chia seeds after cooking and let the mixture thicken as it cools.
Common Mistakes To Avoid
Do not cook over high heat without stirring.
Do not skip the chilled plate test.
Do not judge the jam while it is still hot.
Do not store refrigerator jam at room temperature.
Do not use spoiled or moldy berries.
Do not overcook until the jam becomes stiff.
Frequently Asked Questions
Can I make blueberry jam without pectin?
Yes. This recipe thickens naturally with blueberries, sugar, lemon juice, and cooking time.
Can I use frozen blueberries?
Yes. Frozen blueberries work well, but the jam may need a few extra minutes to thicken.
Why is my blueberry jam runny?
It may need more cooking time. Simmer longer and use the chilled plate test.
Can I reduce the sugar?
Yes, slightly. Reducing too much can make the jam softer and less glossy.
Does blueberry jam need to be refrigerated?
This version does. It is a refrigerator jam and should be stored cold.
Can I make it smoother?
Yes. Blend the jam lightly with an immersion blender or mash the berries more while cooking.
Recipe Card
Blueberry Jam Recipe
This easy blueberry jam is sweet, glossy, fruity, and made without added pectin. It is a small-batch refrigerator jam perfect for toast, biscuits, pancakes, yogurt, desserts, and more.
Prep Time
10 minutes
Cook Time
25 minutes
Total Time
35 minutes
Servings
About 2 small jars
Ingredients
- 4 cups fresh or frozen blueberries
- 1 cup granulated sugar
- 2 tablespoons fresh lemon juice
- 1 teaspoon lemon zest
- 1/8 teaspoon salt
- 1/2 teaspoon vanilla extract, optional
Instructions
- Add blueberries, sugar, lemon juice, lemon zest, and salt to a medium saucepan.
- Mash some of the blueberries with a fork or potato masher.
- Cook over medium heat, stirring often, until the sugar dissolves.
- Bring to a gentle boil, then reduce heat slightly.
- Simmer for 18 to 25 minutes, stirring often, until thick and glossy.
- Test the jam on a chilled plate. Cook longer if needed.
- Remove from heat and stir in vanilla if using.
- Spoon hot jam into clean glass jars.
- Cool, cover, and refrigerate.
- Store in the refrigerator for 2 to 3 weeks or freeze for longer storage.
Notes
Fresh or frozen blueberries both work well. Frozen berries may need a few extra minutes of cooking time. This recipe is for refrigerator storage only and is not intended for shelf-stable canning.
Final Thoughts
This blueberry jam recipe is an easy way to turn fresh or frozen blueberries into a bright homemade fruit spread. It is sweet, glossy, simple, and made without added pectin or complicated canning steps.
Use it on toast, biscuits, pancakes, yogurt, desserts, scones, cheesecake, or thumbprint cookies. If you love small-batch fruit jams, this blueberry jam is a recipe worth keeping.
