Tangy Orange Marmalade

Marmalade lives or dies by two things: the rind, and the set. This recipe handles both with confidence. Slicing the peel into fine slivers (rather than chunks or zest) gives you that classic suspended-citrus look in the finished jar, and using liquid pectin takes the guesswork out of the gel.

The baking soda in the rind simmer is the old-school trick that softens the bitter pith and tempers the harshness you’d otherwise get from boiled citrus peel. Don’t skip it. A little goes a long way: just ⅛ teaspoon.

The full rolling boil for exactly one minute is the make-or-break moment. Stir constantly, count it out, and remove from heat the second the minute is up. Underboil and the marmalade stays syrupy; overboil and the pectin starts breaking down.

Skim foam between rests for the full seven minutes. The pause keeps the rind from floating to the top and lets the jelly thicken enough to suspend the slivers evenly through the jar.

Pro Tips

• Use Seville or other bitter oranges if you can find them in winter, they give marmalade its true sharp-sweet character.
• Sterilize jars in boiling water just before filling so they don’t crack from temperature shock.
• A wide, heavy-bottomed pot is key, marmalade boils up dramatically and scorches easily in thin pans.
• Test set on a chilled saucer: drop a dab, wait 30 seconds, push with a fingertip. If it wrinkles, it’s set.

Variations

• Use blood oranges in place of standard oranges for a rose-gold marmalade with a slightly berry note.
• Add a tablespoon of whiskey or Grand Marnier off the heat for a grown-up edge.
• Stir in a sliced vanilla bean or a few cardamom pods during the rind simmer for an aromatic version.