Skip to main content
Dessert

Citron Preserved

Citron slices are boiled with alum, then preserved in a ginger‑infused sugar syrup.

From an old cookbook · modernised transcription
From a historical cookbook (Internet Archive) · 4 ingredients
Jump to recipe ↓

Why it works: Sugar and ginger are a kitchen classic. They rank in the top 17% of all ingredient pairs, and cooks put them together in 14,054 recipes. Both carry 1-penten-3-one, which smells fish, pungent. The science ↓

Citron Preserved

Ingredients

Directions

Prepare the citron

  1. Boil the citron slices in water with alum until clear and tender, then rinse in cold water.

Make the syrup and finish

  1. Make a syrup by boiling ¾ pound of sugar with a piece of ginger.

  2. Add the citron to the syrup and let it boil for a few minutes.

Recipe from a historical cookbook (Internet Archive).

Transcribed from a scanned cookbook and modernised for today's kitchens. Where the book gave no heat or time, or said "a moderate oven", the temperatures and times here may be modern equivalents rather than the book's own figures.

Explore the science

The flavor team

The pairs that carry this dish. Each one is judged two ways: how much their aromas overlap, and how often cooks already put them together.

  1. Sugar + gingertop 17% of all pairs
    Smell alikelow
    Cooked together14,054 recipes

    Shared aroma: 1-penten-3-one (fish, pungent).

Sugar and ginger barely smell alike, yet cooks put them together in 14,054 recipes: they work on texture and structure more than aroma.

Ranks compare each pair with 20,000 random ingredient pairs on CompKitchen. How we score pairs

What each ingredient does

Citron
The fruit that becomes tender and translucent as it cooks and absorbs the syrup.
Sugar
Dissolves into the syrup to sweeten the citron and help preserve it.
Alum
Helps the citron slices hold their shape and firmness during boiling.
Ginger
Adds a warm, spicy aroma to the syrup.

The step that matters

Boiling the citron until clear and tender. Cooking the slices in water with alum softens the peel and makes it translucent. Stopping too early leaves it tough, while overcooking can break the slices apart.

“What each ingredient does” and “The step that matters” were written by Claude from this recipe’s own method and reviewed in samples by CompKitchen.

More preserved citron recipes

Melon 10 See all 34 →

You might also like

Ginger CookiesGinger Cookies213 recipesGinger CakeGinger Cake93 recipesSoft Ginger BreadSoft Ginger Bread85 recipesSoft Ginger CakeSoft Ginger Cake56 recipes