Capture the vibrant, sun-ripened flavors of summer with this delightful Homemade Blackberry Jam recipe! Made with just three simple ingredients—plump, juicy blackberries, granulated sugar, and a splash of fresh lemon juice—this small-batch jam strikes the perfect balance between sweet and tangy. With a quick prep time of 15 minutes and a straightforward stovetop cooking method, you can create a luscious spread that’s perfect for slathering on toast, swirling into yogurt, or dolloping onto scones. This recipe includes tips for testing the jam’s doneness and provides options for short-term refrigeration or long-term canning. Whether you’re an experienced jam-maker or a curious beginner, this guide ensures your homemade blackberry jam will be as impressively delicious as it is easy to make!
Wash the blackberries thoroughly under cold running water, then drain well.
Combine the blackberries and granulated sugar in a large, heavy-bottomed pot. Stir gently to coat the berries with sugar.
Add the lemon juice to the pot and stir again to combine.
Place the pot over medium-high heat and bring the mixture to a gentle boil, stirring frequently to prevent sticking or burning.
Lower the heat to medium and continue cooking. Use a potato masher or wooden spoon to break down the blackberries as they soften.
Simmer the mixture for about 20–30 minutes or until the jam thickens. To test for doneness, place a small dollop of jam onto a chilled plate. If it holds its shape and wrinkles slightly when pushed with your finger, it’s ready.
Remove the pot from the heat and let the jam cool slightly.
Carefully transfer the jam to sterilized jars, leaving about 1/4 inch of headspace. Seal with lids.
Allow the jars to cool to room temperature before refrigerating or processing them in a water bath for long-term storage.
Store in the refrigerator for immediate use or keep in a cool, dark place if properly canned. Enjoy within 3–6 months.
Calories |
1778 | ||
|---|---|---|---|
% Daily Value* |
|||
| Total Fat | 3.0 g | 4% | |
| Saturated Fat | 0.0 g | 0% | |
| Polyunsaturated Fat | 0.0 g | ||
| Cholesterol | 0 mg | 0% | |
| Sodium | 6 mg | 0% | |
| Total Carbohydrate | 457.4 g | 166% | |
| Dietary Fiber | 30.6 g | 109% | |
| Total Sugars | 429.0 g | ||
| Protein | 8.2 g | 16% | |
| Vitamin D | 0.0 mcg | 0% | |
| Calcium | 169 mg | 13% | |
| Iron | 3.5 mg | 19% | |
| Potassium | 964 mg | 21% | |
*The % Daily Value tells you how much a nutrient in a serving of food contributes to a daily diet. 2,000 calories a day is used for general nutrition advice.