Ingredients for Blackberry Jam
- 4 cups ripe blackberries
- 3 cups granulated sugar
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How to Make Blackberry Jam
- Clean, de-stem, and crush 4 cups of ripe blackberries.
- In a large stainless steel or enamel pot, combine the crushed blackberries with 3 cups of granulated sugar and 1/4 cup of lemon juice.
- Bring the mixture to a rolling boil over medium-high heat, stirring frequently until the sugar is completely dissolved. This will take about 5-7 minutes.
- Continue to boil rapidly, stirring constantly to prevent scorching. Cook until the jam reaches the jelling point (a 220°F temperature or the wrinkle test - a small amount dropped on a chilled plate wrinkles when pushed with a finger). This will typically take another 20-30 minutes.
- Remove the jam from the heat and skim off any foam that has formed on the surface.
- Ladle the hot jam into sterilized, hot jars, leaving 1/4 inch headspace at the top of each jar.
- Wipe the rims of the jars clean, seal with lids and rings, and process in a boiling water bath for 10 minutes at altitudes up to 1000 feet. Adjust processing time according to altitude if necessary (consult a canning guide for specifics).
- Let the jars cool completely. You should hear a satisfying 'pop' sound as the jars seal. Store in a cool, dark place.
Nutrition Information (Approximate per serving)
Sodium
0 g
Sugar
756g
Fat
0g
Carbs
68g
Recipe Tags (Choose a tag and find related recipes!)
Weeknight
Time To Make
Course
Main Ingredient
Cuisine
Preparation
North American
Low Protein
Healthy
5 Ingredients Or Less
Jams And Preserves
Canning
Condiments Etc
Fruit
American
Easy
Low Fat
Dietary
Low Sodium
Low Cholesterol
Low Saturated Fat
Healthy 2
Low In Something
Number Of Servings
Technique
4 Hours Or Less
