This Slow Cooker Strawberry Cranberry Pineapple Jam brings three delicious fruits together in one bright and flavorful spread. Sweet strawberries, tangy cranberries, and juicy pineapple slowly cook until they become soft, rich, and jammy.
The slow cooker makes the process simple because the fruit can cook gently while you take care of other things in the kitchen. A little lemon juice balances the sweetness, while lemon zest and vanilla add extra flavor.
Serve this homemade jam on toast, biscuits, pancakes, waffles, oatmeal, or English muffins. It also works beautifully as a topping for cheesecake, ice cream, yogurt, and other desserts.
Ingredients
- 4 cups fresh strawberries, washed, hulled, and chopped
- 3 cups fresh or frozen cranberries
- 2 cups fresh pineapple, finely chopped
- 3 cups granulated sugar
- 2 tablespoons fresh lemon juice
- 1 tablespoon finely grated lemon zest
- 1 teaspoon vanilla extract
- 1 package powdered fruit pectin, about 1.75 ounces
- 1/4 teaspoon salt
- 1/2 cup water
Instructions
1. Prepare the Fruit
Wash the strawberries, cranberries, and pineapple well.
Remove the green tops from the strawberries and cut the berries into small pieces. Smaller pieces will soften more evenly and make it easier to create the texture you want later.
Peel and finely chop the pineapple. Fresh pineapple gives the jam a fresh tropical taste, but canned pineapple can also be used. If you use canned pineapple, drain it very well before adding it.
Fresh cranberries can be used immediately. Frozen cranberries do not need to be completely thawed first.
2. Combine the Ingredients
Lightly grease the inside of a large slow cooker.
Add the chopped strawberries, cranberries, and pineapple. Sprinkle the sugar over the fruit and stir gently until the fruit is evenly coated.
Add the lemon juice, lemon zest, salt, and water. Mix everything together.
At this point, the mixture will look more like a bowl of sweetened fruit than jam. That will change as the fruit cooks. The strawberries and pineapple will become tender, while the cranberries will soften and burst, releasing their juices.
3. Cook the Fruit
Place the lid on the slow cooker and cook on LOW for 3 to 4 hours.
Stir the mixture every 45 to 60 minutes. Stirring helps the fruit cook evenly and prevents the mixture from sticking around the edges.
As the jam cooks, the cranberries will begin to pop and the fruit will release plenty of liquid. The mixture will gradually become softer and thicker.
After about 3 hours, check the fruit. Once the strawberries, cranberries, and pineapple are very soft, use a potato masher or the back of a large spoon to crush some of the fruit.
You do not need to puree everything. Leaving a few small pieces of strawberry and pineapple gives the finished jam a pleasant homemade texture.
4. Add the Pectin
Once the fruit is hot, soft, and bubbling, gradually sprinkle the powdered pectin into the mixture.
Stir continuously while adding it. This helps the pectin dissolve evenly and prevents large lumps from forming.
Remove the slow cooker lid and continue cooking for another 30 to 45 minutes. Cooking uncovered allows some of the excess moisture to escape and helps the jam become thicker.
Stir occasionally during this stage.
The jam may still look slightly loose while it is hot. This is normal. It will become thicker as it cools and chills.
5. Add the Vanilla
Turn off the slow cooker once the jam has reached a thick, glossy consistency.
Stir in the vanilla extract.
Allow a small spoonful to cool before tasting because the flavor becomes easier to judge once the jam is no longer very hot.
The strawberries and pineapple provide sweetness, while cranberries add a pleasant tart flavor. Lemon juice helps brighten all three fruits and keeps the finished spread from tasting overly sweet.
6. Check the Texture
Before putting the jam into jars, test its consistency.
Place a small plate in the refrigerator or freezer for a few minutes to make it cold. Spoon a little of the hot jam onto the chilled plate and let it sit for about one minute.
Push the jam gently with your finger. If it looks thick and wrinkles slightly as you push it, the consistency is ready.
If the mixture still looks very thin, cook it uncovered for another 10 to 15 minutes. Test it again after cooling a small amount.
Keep in mind that the jam will continue to firm up as it cools, so avoid cooking it for too long just because it looks slightly soft when hot.
7. Fill the Jars
For refrigerator storage, use clean glass jars with clean lids.
Wash the jars and lids thoroughly with hot, soapy water and rinse them well.
Carefully spoon the warm jam into the jars. Leave a little space at the top instead of filling them completely.
Wipe the rims with a clean, damp cloth and close the jars with their lids.
Let the jars cool at room temperature before placing them in the refrigerator.
This recipe is intended as a refrigerator or freezer jam. For shelf-stable canning, use a tested canning recipe and follow proper water-bath processing instructions.
8. Chill and Set
Place the sealed jars in the refrigerator once they have cooled.
Let the jam chill completely before serving. For the best texture and flavor, allow it to rest overnight.
After chilling, the fruit mixture should have a thick, spreadable consistency with a beautiful deep-red color.
How to Serve Strawberry Cranberry Pineapple Jam
This homemade jam is especially good with breakfast foods.
Spread it over warm toast with butter or spoon it onto freshly baked biscuits. You can also swirl a little into Greek yogurt or oatmeal for a fruity breakfast.
Try it with:
- Toast
- Biscuits
- Pancakes
- Waffles
- French toast
- English muffins
- Oatmeal
- Greek yogurt
- Cheesecake
- Vanilla ice cream
For dessert, gently warm a small amount and drizzle it over vanilla ice cream or cheesecake.
You can also spread it between cake layers, use it as a filling for thumbprint cookies, or mix a little into cream cheese frosting.
For an easy appetizer, spoon the jam over softened cream cheese and serve it with crackers. The sweet and tart fruit flavor pairs nicely with creamy cheese.
Storage
Keep the finished jam in clean, sealed jars in the refrigerator.
For best quality, use refrigerated jam within a few weeks and always use a clean spoon when serving.
The jam can also be frozen. Transfer it to freezer-safe containers and leave some room at the top because the jam will expand as it freezes.
When you want to use frozen jam, thaw it in the refrigerator.
Do not eat the jam if you see mold or notice an unusual smell, fermentation, bubbling, or another clear sign of spoilage.
Helpful Tips
Use frozen cranberries: Frozen cranberries are convenient and work very well in this recipe. There is no need to fully thaw them before cooking.
Control the texture: For a chunky spread, lightly mash the fruit and leave some pieces intact. For a smoother jam, use an immersion blender after the fruit has softened.
Drain canned pineapple: If using canned pineapple, remove as much excess liquid as possible. Too much liquid can make the cooking time longer.
Watch the final stage: Once the lid is removed, the mixture will lose moisture more quickly. Stir occasionally and check the consistency so it does not become unnecessarily thick.
Taste after cooling: Hot jam can taste thinner and sweeter than it will after cooling. Let a small amount cool before deciding whether the flavor needs adjustment.
Use clean utensils: Always use clean, dry utensils when taking jam from the refrigerator jar. This helps maintain its quality.
Why This Jam Works
Strawberries provide a naturally sweet berry flavor and give the jam a soft fruit texture. Cranberries bring acidity and a bright tart note, while pineapple adds tropical sweetness and a juicy character.
The lemon juice brings the flavors together and keeps the finished jam tasting fresh. Lemon zest adds another layer of citrus flavor, while vanilla gives the fruit mixture a smooth finishing note.
Slow cooking allows the fruit to soften gradually and gives the flavors time to blend. The result is a colorful homemade spread that is sweet, tart, fruity, and easy to use.
Final Thoughts
Slow Cooker Strawberry Cranberry Pineapple Jam is a simple way to turn fresh or frozen fruit into a flavorful homemade spread. The combination of berries and pineapple creates a beautiful color and a balanced sweet-tart taste.
Once the jam has cooled and set, keep it in the refrigerator and enjoy it with breakfast, snacks, baking, or desserts. A small jar also makes a lovely homemade gift when properly refrigerated and labeled.
With only a little preparation and some slow cooking time, you can have a flavorful fruit jam ready for toast, pancakes, cheesecake, yogurt, and much more.
