Homemade orange marmalade

Prep Time: 30 minutes
Simmer / Softening Time: 45 minutes
Boil / Gel Point Time: 20–25 minutes
Total Active Time: 1 hour 35 minutes (plus cooling/setting time)
Yield: Approximately 4 half-pint (8 oz / 240 ml) jars (32 servings total, 1 tbsp per serving)
Heat Intensity: Low-to-Medium (Softening Stage) transitioning to High / Rolling Boil (Pectin Activation Stage)
Cuisine: Traditional British / European Preserves
Dietary Profile: Vegan, Gluten-Free, Dairy-Free, Naturally Preserved

Equipment Needed

4 glass canning jars (8 oz / 250 ml) with new lids and bands
Heavy-bottomed stainless steel or enameled Dutch oven (minimum 5–6 quart capacity)
Sharp chef’s knife and cutting board
Cheesecloth and kitchen twine (for seeds and pith sachet)
Candy/deep-fry thermometer
2–3 small ceramic plates (placed in the freezer for the wrinkle test)
Wide-mouth canning funnel and ladle
Water bath canner or deep stockpot with a rack

2 lbs (approx. 900 g) fresh organic oranges: Seville/bitter oranges are traditional; sweet varieties like Navel, Valencia, or Cara Cara work well with added lemon juice.
2 large organic lemons: Provides high natural pectin and balancing acidity.
4 cups (800 g) granulated white sugar: Essential for proper gel structure, clarity, and shelf-life preservation.
5 cups (1.2 L) filtered water: For simmering the peels to tender perfection.
1/2 tsp unsalted butter (optional): To reduce surface foaming during the hard boil.

Wash and scrub the citrus thoroughly under warm water to remove any wax or surface residue.
Cut the oranges and lemons in half. Juice them completely into a large bowl through a fine-mesh strainer, reserving every seed and membrane left behind.
Place all the collected seeds and tough central white membranes into a double layer of cheesecloth. Tie it tightly into a pouch using kitchen twine. This sachet is packed with natural pectin, which sets the marmalade naturally.

Use a spoon to scrape away any excessive spongy white pith from the inside of the juiced peel halves if you prefer a sweeter marmalade, or leave some intact for traditional bitterness.
Slice the citrus peel into thin slivers (roughly 1/16-inch to 1/8-inch thick, or finely shredded depending on your preferred texture).

In your heavy-bottomed pot, combine the sliced peels, fresh citrus juice, water, and the cheesecloth pectin bag.
Bring the mixture to a boil over medium-high heat.
Once boiling, reduce the heat to low-medium, cover partially with a lid, and let it gently simmer for 40 to 45 minutes. The peels should become translucent and tender enough to easily crush between your thumb and forefinger.
Remove from heat. Squeeze the cheesecloth pouch against the side of the pot using a wooden spoon to extract the thick pectin-rich juices back into the pot, then discard the pouch.

Add the granulated sugar (and optional butter) to the pot. Stir constantly over low heat until the sugar crystals are completely dissolved.
Increase heat to high to bring the mixture to a vigorous, rapid rolling boil that cannot be stirred down.
Clip a candy thermometer to the side of the pot. Boil rapidly for 15 to 25 minutes, stirring frequently to prevent scorching at the base.
Watch for the temperature to reach 220°F (105°C) at sea level (the standard citrus jellying point).

Remove the pot from heat to prevent overcooking while testing.
Spoon a small drop of hot marmalade onto one of your pre-chilled freezer plates and let it sit for 60 seconds.
Push the edge of the droplet gently with your finger:
- If it wrinkles and holds its shape: The marmalade is done.
- If it runs or feels thin: Return the pot to high heat and boil for another 2–3 minutes before retesting.

Skim off any light foam from the surface with a metal spoon.
Allow the marmalade to rest off the heat for 5 to 8 minutes; stirring once or twice before ladling suspends the peel evenly instead of floating to the top.
Ladle hot marmalade into warm, sterilized jars, leaving 1/4-inch (0.6 cm) of headspace.
Wipe the jar rims with a clean, damp cloth, place the flat lids on top, and screw down the bands until fingertip-tight.
For Long-Term Shelf Storage: Process the sealed jars in a boiling water bath canner for 10 minutes (adjusting for altitude: add 5 minutes for 1,000–3,000 ft, 10 minutes above 3,000 ft).
Remove jars and allow them to cool undisturbed on a towel-lined counter for 12 to 24 hours. Check that all lids have sealed (the center button should pop down and not bounce).

Spiced Orange Marmalade: Add 1 cinnamon stick, 2 whole star anise, and 3 crushed cardamom pods into the pectin cheesecloth pouch during the softening stage.
Ginger-Orange Marmalade: Add 2 tablespoons of finely grated fresh ginger root along with the sliced peels in Step 3.
Whiskey or Bourbon Infusion: Stir in 2 tablespoons of aged bourbon or Scotch whiskey immediately after turning off the heat in Step 5 before ladling.

(Calculated per 1 Tablespoon / 20 g serving)