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Homemade Blackberry Jam

Delicious Homemade Blackberry Jam That's Easy & Low Sugar

This Homemade Blackberry Jam captures the essence of summer with minimal ingredients and customizable sweetness.
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Prep Time 5 minutes
Cook Time 20 minutes
Cooling Time 20 minutes
Total Time 45 minutes
Servings: 2 cups
Course: Breakfast
Cuisine: American
Calories: 50
Ingredients Equipment Method Nutrition Notes

Ingredients
  

For the Jam Base
  • 2 cups Fresh blackberries Frozen can also be used.
  • 1 cup Granulated sugar Adjust based on blackberry ripeness.
  • 2 tablespoons Fresh lemon juice Enhances flavor and preserves color.
For Thickening
  • 2 tablespoons Cornstarch Natural thickener; adjust quantity as needed.
  • 2 tablespoons Cold water Dissolves cornstarch.

Equipment

  • Medium saucepan
  • Potato masher
  • Candy thermometer
  • sterilized jars

Method
 

Step-by-Step Instructions
  1. Wash 2 cups of fresh blackberries under cool running water. Warm in a saucepan over low heat for 3-5 minutes until softened.
  2. Muddle the berries with a potato masher until no large pieces remain (2-3 minutes). Optionally run through a food mill for seedless jam.
  3. Add 1 cup of granulated sugar and 2 tablespoons of lemon juice to the muddled berries. Stir for 1-2 minutes until sugar is dissolved.
  4. In a separate bowl, mix 2 tablespoons of cornstarch with 2 tablespoons of cold water. Pour into the saucepan, stirring continuously for 1-2 minutes.
  5. Increase heat to medium-low and bring to a rolling boil, stirring frequently. Monitor temperature with a candy thermometer until it reaches 220°F (15-20 minutes).
  6. Remove from heat and allow to cool for 15-20 minutes. Transfer to sterilized jars or an airtight container.

Nutrition

Serving: 2tablespoonsCalories: 50kcalCarbohydrates: 12gPotassium: 30mgFiber: 1gSugar: 10gVitamin C: 5mgCalcium: 1mg

Notes

Store in refrigerator for up to one month or freeze for up to a year. Leave room at the top of jars when freezing for expansion.

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