How to Make Blackberry Jam

Chad Montano


Don’t you wish there were a way to capture the essence of the summer season in a jar, so it could be enjoyed over and over again? That’s what this homemade blackberry jam feels like. When you smear a few dollops of its fresh, fruity goodness onto warm, crusty sourdough, it’s like spreading a magical elixir of summer sunshine and cheer. And if you thought making your own jam would put you in, well, a jam, this easy blackberry jam recipe will set you straight: no fancy tools or hard-to-find ingredients needed.

Squeeze every bit of sustenance out of summer by learning how to make blackberry jam at home!

homemade blackberry jam spread on toast

blackberry jam on toast with cream cheese
5 from 1 vote

Blackberry Jam on Sourdough Toast with Whipped Cream Cheese and Mint

Servings 8
Calories 46 kcal



  1. Heat a pot over medium heat. Add blackberries and a splash of water. Bring to a boil, add cane sugar, lemon juice, and zest. Reduce the heat to a gentle boil. Cook for 3-5 minutes. Mash the berries a little, keeping a few intact.

  2. Add cornstarch and mix well. Turn off the heat and cook for 2-3 minutes allowing berries to thicken. Remove from pot and place into a bowl to cool.

  3. Add to toast with a little cream cheese and enjoy!

Recipe Notes

Store in the refrigerator and enjoy within 2-3 weeks.

Ready to get jammin'? Shop the ingredients you need for this delicious recipe now:

Nutrition Facts
Blackberry Jam on Sourdough Toast with Whipped Cream Cheese and Mint
Amount Per Serving (1 serving jam)
Calories 46 Calories from Fat 9
% Daily Value*
Fat 1g2%
Saturated Fat 1g5%
Sodium 2mg0%
Potassium 78mg2%
Carbohydrates 11g4%
Fiber 2g8%
Sugar 9g10%
Protein 1g2%
Vitamin A 90IU2%
Vitamin C 9.2mg11%
Calcium 18mg2%
Iron 0.3mg2%
* Percent Daily Values are based on a 2000 calorie diet.

Prefer another berry? This chia-blueberry jam may be your jam.