Blueberry Jam

This homemade Blueberry Jam is a simple, delicious way to preserve the sweet flavor of blueberries all year long. With just a handful of ingredients and no artificial pectin required, it delivers a naturally thick, fruity spread that’s perfect on toast, swirled into yogurt, or layered in desserts. Whether you’re an experienced canner or a first-timer, this small-batch jam is an easy and rewarding kitchen project.

Jar of blueberry jam with fresh blueberries.
Clock symbol indicating preparation, baking, and chilling times

Prep – 5 minutes
Cook – 25 minutes

2½ cups (600 ml)
Ingredients
  • 4 cups (600g) fresh or frozen blueberries
  • 1½ cups (300g) granulated sugar
  • 2 tbsp (30ml) lemon juice
  • 1 tsp lemon zest
  • 1 tsp vanilla extract (optional)
Instructions
  • Place blueberries, sugar, lemon juice, and zest in a medium saucepan over medium heat.
  • Stir occasionally and bring to a gentle boil.
  • Simmer for 25–30 minutes, stirring often, until thickened. The jam should coat the back of a spoon.
  • For a smoother texture, mash the berries lightly with a fork or potato masher.
  • Stir in vanilla (if using), then remove from heat.
  • Let cool slightly, then pour into clean glass jars. Seal and refrigerate once cooled.
  • Keeps in the fridge up to 3 weeks, or freeze for longer storage.

Tips & Tricks

  • Use fresh or frozen blueberries — if using frozen, thaw first and discard excess liquid.
  • Don’t skip the lemon juice — it balances the sweetness and helps the jam set naturally.
  • For a smoother jam, mash the berries thoroughly or blend briefly before cooking.
  • Test the jam’s doneness by placing a small spoonful on a chilled plate — it should wrinkle slightly when pushed.
  • Store in sterilized jars for longer shelf life, or refrigerate and use within 3 weeks if not sealing.
  • Spoon over buttered toast, pancakes, or waffles for a burst of berry flavor.
  • Swirl into yogurt, oatmeal, or overnight oats for a fruity twist.
  • Use as a filling in layer cakes, thumbprint cookies, or homemade pastries.

Related Recipes

  • Peach Jam – A sunny, mellow option for those who love soft stone fruits.
  • Cherry Sorbet – A tart, refreshing dessert that balances well with blueberry.
  • Lemon Bars – A bright citrusy dessert where a spoonful of blueberry jam can be added as a swirl on top for a berry twist.