Ingredients:
- 4 cups (500 g) Dark Cherries (fresh or frozen, pitted)
- 3 cups (600 g) Granulated Sugar
- 2 Tbsp (30 ml) Lemon Juice (freshly squeezed)
- 2 Tbsp (30 g) High-Pectin Jam Sugar OR Powdered Pectin
- 1 Tbsp (15 g) Unsweetened Cocoa Powder
- 1 large Cinnamon Stick
- 4 Whole Cloves
- 1/4 cup (60 ml) Dark Rum or Brandy (e.g., Kirschwasser)
- 1 tsp (5 ml) Vanilla Extract
Instructions:
- Sterilise Jars: Wash jars and lids thoroughly. Place jars in the oven at 275°F (135°C) for at least 15 minutes, or use the boiling water method for sterilisation. Keep jars hot until filling.
- Combine Ingredients (Initial Mix): In a heavy-bottomed saucepan, combine the cherries, sugar, cocoa powder, cinnamon stick, cloves, and lemon juice.
- Macerate: Let the mixture sit for 15-20 minutes to draw out the cherry juices.
- Dissolve Sugar: Place the saucepan over low heat. Stir gently and continuously until all the sugar has completely dissolved. Do not rush this step, as undissolved sugar can cause crystallisation later.
- Add Pectin: Once the sugar is fully dissolved, stir in the jam sugar or powdered pectin.
- Bring to a Rolling Boil: Increase the heat to high. Bring the mixture to a rapid, “rolling” boil that cannot be stirred down.
- Cook to Setting Point: Continue boiling rapidly, stirring frequently, until the temperature reaches 220°F (105°C). This is the required jellying point.
- Test the Set (The Frozen Plate Method): Remove the pan from the heat. Spoon a small amount of preserve onto a shallow plate chilled in the freezer. Return the plate to the freezer for 1 minute. Push the preserve with your finger; if it wrinkles, it has set. If not, boil for another 2 minutes and re-test.
- Finish the Flavour: Once set, remove the pan from the heat. Skim off any excess foam from the surface using a metal spoon. Remove the cinnamon stick and cloves.
- Add Alcohol and Vanilla: Stir in the dark rum/brandy and vanilla extract. Stir well to incorporate.
- Fill Jars: Carefully ladle the hot preserve into the hot, sterilised jars, leaving about 1/4 inch (6 mm) headspace.
- Seal and Process (Optional): Wipe the rims clean, secure the lids tightly. For long-term shelf stability, process the sealed jars in a boiling water bath for 10 minutes. Alternatively, allow to cool fully and refrigerate.