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Prep Time: 1 Minutes Cook Time: 10 Minutes |
Ready In: 11 Minutes Servings: 6 |
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Ingredients:
5 cups crushed fresh ripe blueberries |
2 tablespoons strained fresh lemon juice |
7 cups sugar |
1/2 teaspoon unsalted butter |
2 (3 ounce) packages liquid pectin |
1/4 teaspoon ground cinnamon (optional) |
Directions:
1. In an 8-quart pan, add the blueberries, lemon juice, sugar, and butter; combine.
2. Over medium-low heat, stirring constantly, heat the mixture until the sugar is completely dissolved; increase heat to medium-high and bring the mixture to a full rolling boil, stirring constantly.
3. Stir in the pectin; return mixture to a full rolling boil, stirring constantly.
4. Boil, stirring constantly, for 1 minute; remove the pan from heat; skim off any foam; stir in the cinnamon, if desired.
5. To prevent the jam from separating in the jars, let jam cool for 5 minutes before filling the jars.
6. Gently stir jam every minute or so to distribute fruit.
7. Ladle the hot jam into hot jars, leaving 1/4 inch headspace.
8. Wipe the jar rims and threads with a clean, damp cloth; cover with hot lids and apply screw rings.
9. Process half-pint jars in a 200° water bath for 10 minutes, pint jars for 15 minutes.
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