How to Make Blueberry-Blackberry Jam - A Step-by-Step Guide

Blueberry-blackberry jam is a delicious and versatile spread that can be enjoyed on toast, pancakes, waffles, and even as a topping for ice cream or yogurt. It’s the perfect way to capture the flavors of summer and enjoy them all year round. This homemade jam is bursting with the natural sweetness of ripe blueberries and blackberries, and it’s easy to make in your own kitchen.

One of the best things about making your own jam is that you can control the ingredients and sweetness levels...

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Ingredients

  • 2 tablespoons slivered almonds
  • 2 ½ cups crushed ripe blueberries
  • 2 ½ cups crushed ripe blackberries
  • 1 (1.75 ounce) package fruit pectin (such as Sure-Jell Premium Fruit Pectin®)
  • 7 cups white sugar
  • lemon, juiced
  • 2 tablespoons gin

Information

  • Prep Time: 20 mins
  • Cook Time: 5 mins
  • Additional Time: 1 day
  • Total Time: 1 day 25 mins
  • Servings: 128
  • Yield: 8 half-pint jars

  • Inspect 8 half-pint jars for cracks and rings for rust; discard any defective ones. Immerse in simmering water until jam is ready. Wash new, unused lids and rings in warm soapy water.
  • Toast the almonds in an ungreased skillet until lightly colored, 3 to 5 minutes. Set aside.
  • Place crushed blueberries and blackberries in a large pot and add pectin. Slowly bring to a full rolling boil. Add sugar and lemon juice and stir to dissolve. Return to a full rolling boil for exactly 1 minute, stirring constantly. Skim off any foam with a ladle or a large spoon.
  • Remove the pot from the heat. Stir in gin and toasted almonds.
  • Ladle jam immediately into the prepared jars, filling to within 1/4 inch of the top. Run a clean knife or thin spatula around the insides of the jars to remove any air bubbles. Wipe rims with a moist paper towel to remove any spills. Top with lids and tightly screw on rings.
  • Place a rack in the bottom of a large stockpot and fill halfway with water. Bring to a boil and lower jars 2 inches apart into the boiling water using a holder. Pour in more boiling water to cover jars by at least 1 inch. Bring to a rolling boil, cover, and process for 10 minutes.
  • Remove the jars from the stockpot and place onto a cloth-covered or wood surface, several inches apart. Let rest for 24 hours without moving the jars. Gently press the center of each lid with a finger to ensure the lid does not move up or down. Remove the rings for storage and store in a cool, dark area.
  • Nutrition

    47 cal.

    • Total Fat: 0g
    • Sodium: 0mg
    • Total Carbohydrate: 12g
    • Dietary Fiber: 0g
    • Total Sugars: 11g
    • Protein: 0g
    • Vitamin C: 2mg
    • Calcium: 2mg
    • Potassium: 9mg