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Blackberry Syrup
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5 from 1 vote

Blackberry Syrup

Blackberry syrup captures the deep, jammy sweetness of ripe blackberries in a pourable form perfect for pancakes, cocktails, and desserts. Works with wild or cultivated berries.
Prep Time20 minutes
Cook Time10 minutes
Straining Time2 hours
Total Time2 hours 30 minutes
Course: syrup
Cuisine: American
Keyword: blackberry canning recipes
Servings: 48 servings (about 3 pints)

Equipment

Ingredients

  • 10 cups blackberries fresh or frozen (about 2½ lbs)
  • 1½ cups water for juice extraction
  • 4 cups granulated sugar

Instructions

  • Place blackberries and water in a large stainless steel saucepan. Bring to a simmer over medium heat, mashing frequently with a potato masher, until berries have completely fallen apart, about 5-10 minutes.
  • Transfer to a dampened jelly bag or cheesecloth-lined strainer set over a deep bowl. Let drip undisturbed for at least 2 hours. Do not squeeze. You should get about 4 cups of juice.
  • In a large saucepan, combine blackberry juice and sugar. Heat over medium-high heat, stirring constantly, until sugar dissolves. Bring to a boil, reduce heat, and simmer 5 minutes.
  • Ladle hot syrup into prepared jars, leaving 1/2 inch headspace. Wipe rims, center lids, and apply bands to fingertip tight.
  • Process in a boiling water bath canner for 10 minutes for pints or half pints, adjusting for altitude. Let stand in canner 5 minutes before removing.

Notes

This recipe uses a simple 1:1 ratio of juice to sugar. You can reduce sugar to 3 cups for a more tart syrup.

Yield

According to the Ball Complete Book, you'll need about 2½ cups of blackberries per cup of juice. So 10 cups of berries yields about 4 cups juice, which combined with 4 cups sugar makes about 6 cups syrup (3 pints or 6 half pints).

No Lemon Juice Needed

Blackberries are naturally acidic enough for safe water bath canning without additional lemon juice.

Fresh or Frozen

Frozen blackberries work just as well as fresh. Freezing breaks down cell walls, making juice extraction even easier.

Altitude Adjustments

  • 0 to 1,000 feet: 10 minutes
  • 1,001 to 6,000 feet: 15 minutes
  • Above 6,000 feet: 20 minutes

Nutrition

Calories: 77kcal | Carbohydrates: 19g | Protein: 0.4g | Fat: 0.2g | Saturated Fat: 0.004g | Polyunsaturated Fat: 0.1g | Monounsaturated Fat: 0.01g | Sodium: 1mg | Potassium: 49mg | Fiber: 2g | Sugar: 18g | Vitamin A: 64IU | Vitamin C: 6mg | Calcium: 9mg | Iron: 0.2mg