
Orange marmalade is a citrus preserve of orange juice and peel boiled with sugar into a jelly-like set, with shreds of peel suspended through it.
It brings sugar, acidity, bitterness and orange aroma in one spoonful, and it is the heart of the Breakfast Martini. It is thick and clumps when cold, so stir it into the spirit before adding ice. If the drink is shaken, shake hard and fine-strain. A fine-cut or shredless marmalade gives the cleanest result.
Fine-strain the drink either way to catch the bits of peel.
Any orange marmalade
Works in the same amount. A bitter Seville marmalade is the classic choice.
Lemon or grapefruit marmalade
Swaps in one for one, with a sharper taste.
Apricot jam
The closest plain fruit jam. Use the same amount, with a pinch of grated orange zest for bitterness.
Syrup with zest and orange bitters
For each barspoon of marmalade, use a barspoon of 2:1 syrup, a wide strip of orange zest and a dash of orange bitters. The sugar comes out about the same.
It sets because citrus is high in pectin. Bitter Seville oranges are especially rich in it, which is why they are the classic marmalade fruit.
Keep it refrigerated once opened. The high sugar keeps it stable, but it can grow surface mold over time.
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