Kumquat Marmalade

DSCN3858Kumquat Marmalade is a low-sugar cooked marmalade made with Pomona’s Pectin. Pomona’s Pectin contains no sugar or preservatives and jells reliably with low amounts of any sweetener. See below for where to buy. This recipe was created by Allison Carroll Duffy for Pomona’s Pectin.

She says:

If you are not normally a fan of marmalade but are craving a bit of citrus, this is the marmalade to try!

Yield: 4 to 5 cups

Before You Begin:
Prepare calcium water. To do this, combine ½ teaspoon calcium powder (in the small packet in your box of Pomona’s pectin) with ½ cup water in a small, clear jar with a lid. Shake well. Extra calcium water should be stored in the refrigerator for future use.

Kumquat Marmalade Ingredients

DSCN38122 pounds kumquats
2 cups water
¼ cup lemon juice
2 teaspoons calcium water
1½ cups sugar
3 teaspoons Pomona’s Pectin powder

Kumquat Marmalade Directions

1. Wash and rinse jars, lids, and screw bands. Set screw bands aside until ready to use. Place jars in boiling water bath canner with a rack, fill at least 2/3 of the way full with water, and bring to a boil. Boil jars for 10 minutes to sterilize (add 1 additional minute of sterilizing time for every 1000 feet above sea level), then turn down heat and let jars stand in hot water until ready to use. Place lids in water in a small pan, bring to a low simmer, and hold there until ready to use.

2. Thoroughly rinse the kumquats. Then, slice each kumquat width-wise into several thin, quarter-sized rounds (a small, serrated knife works well for this). Remove and discard the seeds as you are working.


3. Combine the sliced kumquats and the 2 cups of water in a saucepan, cover with a lid, and bring to a boil. Reduce heat and simmer, stirring occasionally, for 15 minutes, then remove from the heat.

DSCN38364. Measure 4 cups of the cooked kumquat mixture. If you have extra, save it for another use. Pour the measured amount of the kumquat mixture into a sauce pan. Add lemon juice and calcium water and stir to combine.



5. In a separate bowl, combine the sugar and the pectin powder. Mix well and set aside.

6. Bring the kumquat mixture to a rolling boil over high heat. Add the sugar-pectin mixture, then stir vigorously for 1 to 2 minutes, still over the highest heat, to dissolve pectin. Return the mixture to a boil, then remove it from the heat.

7. Remove hot jars from canner and fill jars with marmalade, leaving ¼ inch of headspace. Remove trapped air bubbles, wipe rims with a damp cloth, and put on lids and screw bands, tightening bands only to “fingertip tight” (until resistance is met, and then just the tiniest bit more).

8. Place jars in the hot water, on the rack inside the canner. (Make sure jars are upright, not touching each other or the sides of the canner, and are covered with at least 1-2 inches of water). Place the lid on the canner, return the canner to a rolling boil, and boil for 10 minutes. (Add 1 minute additional processing time for every 1000 feet above sea level.)

9. Turn off heat and allow canner and jars to sit for 5 minutes. Then remove jars from canner.

10. Allow jars to cool undisturbed for 12 to 24 hours. Then confirm that jars have sealed. Remove screw bands from sealed jars, rinse off outside of jars if necessary, label jars, and store for later use.

Recipe and photos by Allison Carroll Duffy

See Allison’s complete blog post on Kumquat Marmalade here.

For more inspiring recipe ideas, see Preserving with Pomona’s Pectin: The Revolutionary Low-Sugar, High-Flavor Method for Crafting and Canning Jams, Jellies, Conserves, and More by Allison Carroll Duffy and the Pomona’s Partners, published by Fair Winds Press, June 2013, and available in paper or ebook everywhere books are sold.

Pomona’s Pectin is available at your local natural food store, food co-op, and many farm stands. Find it also at Sur La Table and a growing number of more conventional grocery stores with natural food sections (Wegmans, Hy-Vee, Rosauers, Nugget Markets, Coborns, Fairway, and others). If you can’t find a store near you on our store locator, you can order from our website or many other online sellers.

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4 thoughts on “Kumquat Marmalade

    • Hello Ursula,
      This recipe can be made with less sugar. The smallest amount for stirring 3 teaspoons of pectin into would be 3/8 of a cup of sugar or honey.

      If you wanted to make it with less sugar or honey than that, you would follow the directions for making liquid pectin with water or unsweetened fruit juice as described in Step 4 in the upper left hand corner of the back side of the recipe sheet that comes with Pomona’s Pectin — “Directions for Cooked Jam, Jelly, Jello — Stevia Concentrate or No Sweetener.”

      Then follow Step 5 in that same place for adding the pectin to the kumquat mixture. If you taste your jam before jarring and it isn’t sweet enough, you can add any amount of sugar, honey, or any other sweetener at this point. Stir well, return mixture to a boil, and then follow the Kumquat Marmalade recipe directions to finish it off.

      I hope this helps — and happy jamming!

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