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Christmas Jam

Prep Time 20 minutes
Cook Time 25 minutes
Cooling & Setting Time 2 to 4 hours (at room temperature)
Total Time 45 minutes active (plus setting time)
Heat Intensity Progression Medium-Low (fruit softening) $\rightarrow$ High/Rolling Boil (pectin activation) $\rightarrow$ Medium (thickening)
Difficulty Level Beginner-Friendly
Yield Approximately 4 half-pint (8 oz) jars (about 32 tablespoons total)

Ingredients

Fruit Base

  • 16 ounces (450 g) fresh or frozen strawberries, hulled and finely diced (if using frozen, thaw completely and include any accumulated juices)

  • 12 ounces (340 g) fresh or frozen cranberries, rinsed and picked over to remove any soft or bruised berries

  • 1/2 cup (120 ml) freshly squeezed orange juice (from about 2 medium navel oranges)

  • 1 tablespoon freshly grated orange zest (packed, avoiding the bitter white pith)

Sweetener & Gelling Agent

  • 3 cups (600 g) granulated white sugar (essential for proper preservation, texture, and sheen)

  • 1 package (1.75 oz / 49 g) powdered fruit pectin (regular, not low-sugar)

  • 1/2 teaspoon unsalted butter (optional, stirred in during boiling to dramatically reduce surface foam)

Holiday Spice Blend

  • 1 teaspoon ground Ceylon cinnamon (or 2 whole cinnamon sticks, removed before jarring)

  • 1/4 teaspoon ground cloves

  • 1/4 teaspoon freshly grated nutmeg

  • 1/8 teaspoon ground allspice

  • Pinch of fine sea salt (balances sweetness and amplifies the berry notes)

Equipment Needed

  • Large, heavy-bottomed 6-to-8-quart stainless steel or enameled Dutch oven (a wide base helps moisture evaporate faster and prevents boil-overs)

  • Potato masher or sturdy wooden spoon

  • Digital instant-read thermometer or candy thermometer (optional, for checking the $220^\circ\text{F} / 104^\circ\text{C}$ gel point)

  • 4 clean half-pint (8-ounce) glass mason jars with new two-piece lids and bands

  • Wide-mouth canning funnel and ladle

Step-by-Step Instructions

Stage 1: Preparation and Maceration (Prep: 20 Minutes | Heat: Off)

  1. Sanitize your jars: Wash your glass jars, lids, and bands in hot, soapy water. Rinse thoroughly and keep the jars warm (either in a $200^\circ\text{F} / 95^\circ\text{C}$ oven or submerged in simmering water) until ready to fill so the glass does not crack when hot jam is ladled inside.

  2. Prepare the fruit: Hull and finely chop the strawberries into 1/4-inch pieces so they distribute evenly throughout the spread. Leave the cranberries whole—they will pop naturally as they heat, releasing their natural pectin.

  3. Combine in the pot: Add the diced strawberries, whole cranberries, freshly squeezed orange juice, orange zest, ground cinnamon, cloves, nutmeg, allspice, and sea salt to your heavy-bottomed pot. Stir well to coat the berries in the citrus and spices.

Stage 2: Gentle Softening (Cook: 8 Minutes | Heat Intensity: Medium-Low)

  1. Warm the fruit: Place the pot over medium-low heat. Cover with a lid and let the mixture warm gently for about 8 to 10 minutes, stirring occasionally with a wooden spoon.

  2. Release juices and mash: As the heat rises, the cranberries will begin to pop and burst. Once the fruit has softened and released a generous amount of ruby liquid, remove the lid and use a potato masher to gently crush the berries to your desired consistency—leaving a few small chunks gives the jam an artisanal, homemade texture.

Stage 3: Pectin Activation and Rolling Boil (Cook: 5 Minutes | Heat Intensity: High)

  1. Whisk in the pectin: Sprinkle the powdered fruit pectin evenly over the warm fruit mixture, stirring constantly so no clumps form. Add the 1/2 teaspoon of butter if using.

  2. Bring to a full boil: Increase the stove burner to high heat. Stirring continuously to prevent scorching, bring the mixture to a full, rolling boil—a vigorous boil that cannot be stirred down even while actively moving your spoon through the center of the pot.

  3. Add the sugar: Pour in all 3 cups of granulated sugar at once. Stir rapidly until the sugar completely dissolves and the mixture turns glossy and deep crimson.

Stage 4: Final Thickening and Gel Set (Cook: 2–3 Minutes | Heat Intensity: High to Medium)

  1. Hard boil for the set: Return the mixture to a hard, full rolling boil over high heat. Boil vigorously for exactly 1 to 2 minutes, stirring constantly from the bottom of the pot. Do not walk away during this stage, as jam can bubble up quickly.

  2. Test for doneness: Turn the heat down to low or remove the pot from the burner completely. You can verify the jam has reached its setting point using two methods:

    • The Cold Plate Test: Spoon a teaspoon of hot jam onto a plate that has been chilling in the freezer for 10 minutes. Return the plate to the freezer for 1 minute, then push the edge of the jam with your finger. If the surface wrinkles and holds a clean path when parted, it is ready.

    • Temperature Check: A digital thermometer inserted into the center of the jam should read $220^\circ\text{F} ($104^\circ\text{C}$) at sea level.

  3. Skim any foam: If any light pink foam remains on the surface, gently skim it off with a metal spoon for crystal-clear, jewel-like jars.

Jarring, Cooling & Storage (The Final Stage)

  1. Fill the jars: Place a wide-mouth funnel over your warm, clean jars and ladle the hot Christmas Jam inside, leaving 1/4 inch of headspace at the top.

  2. Seal and cool: Wipe the jar rims clean with a damp paper towel to remove any sticky residue, place the flat lids on top, and screw on the metal bands until fingertip-tight.

  3. Let it set undisturbed: Allow the jars to cool completely at room temperature on a kitchen towel for 12 to 24 hours before moving or tilting them. As the jam cools, the pectin bonds tighten into a rich, spreadable gel.

  4. Storage options:

    • Refrigerator Storage: Once cooled, store jars directly in the refrigerator for up to 3 months.

    • Freezer Storage: Leave 1/2 inch of headspace if freezing; store in freezer-safe jars for up to 1 year. Thaw overnight in the fridge before serving.

    • Water-Bath Canning (Shelf-Stable): Process filled jars in a boiling water bath canner for 10 minutes (adjusting for altitude) to store unopened in a cool, dark pantry for up to 12 months.

Serving Suggestions & Variations

  • Holiday Charcuterie Boards: Serve in a small ceramic ramekin alongside baked brie, sharp white cheddar, prosciutto, toasted pecans, and crisp water crackers.

  • Festive Thumbprint Cookies: Spoon a half-teaspoon of jam into the center of almond shortbread thumbprint cookies before baking.

  • Savory Glaze: Whisk 3 tablespoons of Christmas Jam with 1 tablespoon of Dijon mustard and a splash of balsamic vinegar to glaze roasted pork tenderloin, turkey, or baked meatballs.

  • Spiced Apple-Cranberry Variation: Swap out 8 ounces of the strawberries for finely diced Honeycrisp or Granny Smith apples for an earthier, orchard-inspired holiday preserve.

Nutrition Facts

Nutritional values are approximate and calculated per 1-tablespoon serving (based on 32 total servings per batch).

Nutrient Amount per Serving (1 Tbsp / ~24 g) % Daily Value*
Calories 82 kcal 4%
Total Fat 0.1 g 0%
Saturated Fat 0 g 0%
Cholesterol 0 mg 0%
Sodium 12 mg 1%
Total Carbohydrates 21.1 g 8%
Dietary Fiber 0.7 g 3%
Total Sugars 19.6 g —
Added Sugars 18.8 g 38%
Protein 0.1 g 0%
Vitamin C 11.4 mg 13%
Potassium 34 mg 1%

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