This Blackberry Jalapeno Jam balances sweet and spicy in a simple, four-ingredient spread. It’s easy to make and brightens breakfasts, snacks, and cheese boards with a fruity kick.
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When blackberries are in season I like to buy extra and preserve the flavor as jam. Fresh berries are lovely on their own—topped on yogurt, oatmeal, or with whipped cream—but turning them into jam lets you enjoy that seasonal taste for weeks. Adding jalapenos gives the jam a bright, subtle heat that offsets the berry sweetness.
This recipe is pectin-free and relies on the fruit and sugar to thicken as it cooks. The finished jam stores well in the refrigerator for several months or can be frozen for longer keeping.
Ingredients
These are the simple ingredients you’ll need for a pectin-free blackberry jalapeno jam.
- Fresh blackberries: Rinse and pat dry before using.
- Jalapeno peppers: Seed and remove membranes to reduce heat, or leave some seeds if you prefer more spice.
- Lemon juice: Freshly squeezed lemon juice adds the acidity needed to balance the jam.
- Sugar: White granulated sugar is used here, but other sweeteners can be substituted.
See the recipe card below for exact quantities, nutrition, and full instructions.
Variations
- Mix berries: Combine blackberries with blueberries, raspberries, or strawberries for a different flavor profile.
- Swap sugars: Use raw cane sugar or coconut sugar to reduce refined sugar.
- Adjust heat: Use hotter chiles like habanero for more spice, or include some jalapeno seeds for extra bite.
How to Make Blackberry Jalapeno Jam
Prepare jars or containers for storing the finished jam before you begin. Follow these steps to make the jam without pectin.
Step 1: Combine the ingredients. Add the blackberries, chopped jalapenos, lemon juice, and sugar to a large saucepan and stir to combine.
Step 2: Start cooking. Heat over medium-high, stirring frequently until the berries begin to burst and the sugar dissolves.
Step 3: Press the berries. Use a potato masher or the back of a spoon to break down the berries until the mixture is smooth enough for your preference.
Step 4: Continue cooking. Raise the heat slightly and cook until the jam reaches about 220°F (use a candy thermometer for accuracy). This usually takes 25–30 minutes; stir frequently to prevent sticking.
Step 5: Store the jam. Remove from heat, let cool slightly, then transfer to clean jars. Refrigerate sealed jars for up to three months or freeze for up to a year.
Serving Suggestions
This jam is versatile—here are some tasty ways to enjoy it:
- Spread on toast, bagels, English muffins, or crackers with cream cheese.
- Swirl into oatmeal or Greek yogurt for a fruity, spicy boost.
- Top pancakes or waffles and serve with bacon for a sweet-and-spicy breakfast.
- Include it on a cheese board—pairs well with soft cheeses and crackers.
- Mingle a spoonful into barbecue sauce for a glaze on chicken or pork.
Expert Tips
- Use a candy thermometer: It helps achieve the right set for a pectin-free jam—about 220°F.
- Pick ripe berries: Choose plump, firm, dark black blackberries for the best flavor.
- Adjust heat: The recipe’s chopped jalapenos yield about 1/4 cup; change the amount to suit your spice tolerance.
- Storage: Keep jam refrigerated in sealed jars for up to three months, or freeze in airtight containers for up to a year.
Recipe FAQs
Cook the fruit and sugar long enough for the mixture to reduce and thicken. In this recipe the jam typically cooks 25–30 minutes until it reaches the proper temperature and consistency.
Yes. Thaw and drain frozen berries before using, and try to freeze them when they are at peak ripeness for best flavor.
This recipe is not a canning method. Store the jam refrigerated or frozen to prevent spoilage.
It yields about three 8-ounce jars, roughly twelve 2-ounce servings (or twenty-four 1-ounce servings).
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Did you try this recipe? Please leave a star rating in the recipe card below and write a review in the comment section—I always appreciate your feedback. Tag @freshcoasteats in photos if you share your results on social media.
Blackberry Jalapeno Jam
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Ingredients
- 4 cups fresh blackberries cleaned and dried
- 3 fresh jalapeno peppers seeded and finely chopped (about ¼ cup; adjust to taste)
- ¼ cup freshly squeezed lemon juice
- 4 cups white granulated sugar
Instructions
- In a large saucepan, combine blackberries, chopped jalapenos, lemon juice, and sugar; stir until blended.
- Heat over medium-high, stirring frequently until the berries burst and the sugar dissolves.
- Press the berries with a potato masher or the back of a spoon until the texture is as smooth as you like.
- Increase heat slightly and cook until the jam reaches about 220°F, stirring every few minutes. This takes approximately 25–30 minutes.
- Remove from heat, let cool a bit, then transfer to jars for storage.
Notes
- Yield: About three 8-ounce jars (roughly 12 two-ounce servings).
- Thermometer: A candy thermometer helps ensure the proper set for pectin-free jam.
- Fruit quality: Use ripe, firm blackberries for the best flavor and color.
- Spice level: Adjust the amount of jalapeno or include seeds to increase heat.
- Storage: Refrigerate sealed jars up to three months or freeze for up to a year.
Nutrition
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Carbohydrates: 72 g
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Protein: 1 g
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