Lime Marmalade Recipe Without Pectin (Print version)

A bright, tangy lime marmalade made without boxed pectin, with tender peel and a glossy old-fashioned set.

# Ingredients:

For the marmalade

01 - 2 lb (900 g) fresh limes, about 12-16 medium, scrubbed
02 - 8 cups (1.9 L) water
03 - 6 1/2 cups (1.3 kg) granulated sugar, plus up to 1/2 cup more to taste
04 - 2 tablespoons fresh lemon juice, optional
05 - 1 small pinch fine salt, optional

# Instructions:

01 - Trim off the tough stem ends. Remove obvious seeds, then slice the limes very thinly with a sharp knife or mandoline. Cut the slices into quarters if you want smaller peel pieces.
02 - Combine the sliced limes and water in a large nonreactive bowl or pot. Cover and let stand at room temperature for 8-12 hours.
03 - Bring the lime mixture to a boil in a large jam pot. Boil uncovered for about 40 minutes, stirring now and then, until the peel is tender and bends easily.
04 - Stir in the sugar gradually until fully dissolved. Remove from the heat, cover, and let stand for 6-12 hours to help the natural pectin develop.
05 - Return the mixture to a boil over high heat. Stir often and cook until it reaches 216-218 F or passes the cold plate wrinkle test. Remove the pot from the heat while testing so it does not overcook.
06 - Taste carefully once the bubbling slows. Stir in lemon juice and a pinch of salt if needed. Let the marmalade stand for 10 minutes, then stir to distribute the peel.
07 - Ladle into clean jars. For refrigerator storage, cool and chill. For freezer storage, leave 1 inch headspace. For water-bath canning, leave 1/4 inch headspace and process according to current safe canning guidance for your altitude.

# Good to know:

01 - Makes about 10 half-pint jars depending on how far the marmalade is reduced.
02 - Plan on 2 overnight rests plus about 70 minutes of active cooking.
03 - The set will firm as the jars cool and may continue to tighten over 24 hours.