Bright & Bitter Five-Citrus Marmalade

A fragrant, jewel-toned marmalade that balances the floral sweetness of pomelo with the tang of grapefruit, kumquat, orange, and lemon.

This marmalade came about because I wanted to celebrate pomelos—their scent is utterly captivating, and they deserve more than just being eaten out of hand. The combination of five citrus fruits creates a complex, layered flavor: the pomelo brings a mild, floral sweetness, the grapefruit adds a pleasant bitterness, kumquats contribute a burst of intense citrus, while oranges and lemons round everything out with familiar brightness.

The method is a two-day affair: the first day is all about preparing the fruit and letting it macerate in water overnight, which softens the peels and draws out the pectin. The second day is a quick cook, ending with a simple water-bath canning. The result is a marmalade with a beautiful set—not too stiff, not too runny—and just the right ratio of jelly to tender strips of peel.

Ingredients

Servings 4

Converted amounts are rounded.

Method

  1. Day 1: Prepare the fruit. For the pomelos: Use a sharp knife or vegetable peeler to remove only the colored zest, leaving the white pith behind. Stack the zest strips and slice them as thinly as possible; if they are long, cut them in half or thirds so they fit nicely on a spoon. Set aside. Then trim off the remaining pith to expose the fruit. Cut out the segments (supremes) from between the membranes, then roughly chop the segments into bite-sized pieces. Place both zest and fruit pieces in a large mixing bowl.
  2. For the grapefruit: Repeat the same process—remove the colored zest in thin strips, then segment the fruit. Add everything to the bowl with the pomelo.
  3. For the kumquats: Trim off the stem end, slice each kumquat in half, and remove any seeds. Then slice each half into very thin strips. Add to the bowl.
  4. For the lemons and oranges: Cut off both ends, then quarter each fruit lengthwise. Cut away the central pith and seeds from each quarter. Lay each piece skin-side down and slice as thinly as possible. Add to the bowl.
  5. Combine all the prepared fruit with the water in a nonreactive container (glass or stainless steel). Cover and let sit at room temperature for 24 hours.
  6. Day 2: Prepare a boiling water canner. Wash the jars and lids in hot, soapy water and keep them hot.
  7. Pour the fruit mixture into a large nonreactive pot (enameled cast iron or stainless steel). Bring to a simmer over medium heat and cook for 20 minutes, until the peels are tender.
  8. Add the sugar and stir until completely dissolved. Increase the heat to high and cook, stirring occasionally, until the marmalade reaches 220°F on a candy thermometer, or passes a gel test (a small spoonful on a chilled plate wrinkles when pushed).
  9. Ladle the hot marmalade into the hot jars, leaving 1/4-inch (6 mm) headspace. Wipe the rims, place the lids on, and screw on the bands fingertip-tight. Process in the boiling water canner for 10 minutes. Turn off the heat, let the jars sit in the water for 5 minutes, then remove and cool completely on a towel. Check the seals.

💡 Tips

  • If you don't have a candy thermometer, use the chilled plate test: place a small plate in the freezer, then drop a spoonful of marmalade on it; if it wrinkles when you push it with your finger, it's ready.
  • The marmalade will thicken further as it cools, so don't overcook it.
  • Store sealed jars in a cool, dark place for up to a year; once opened, refrigerate and use within 3 months.

Inspired by a recipe from Food52

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