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Dessert

Orange Marmalade

A sweet preserve made from oranges, lemons, pineapple, and sugar, boiled into a thick syrup.

From an old cookbook · modernised transcription
From a historical cookbook (Internet Archive) · 5 ingredients
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Why it works: Orange and lemon match in chemistry and in kitchens. They rank in the top 1% of all ingredient pairs, and cooks put them together in 10,634 recipes. Both carry 3-hexenal, which smells apple, fruity. The science ↓

Orange Marmalade

Ingredients

Directions

Prepare the fruit

  1. Combine the pulp of 10 oranges, sliced oranges, lemons, and diced pineapple in a bowl.

  2. For every pound of fruit, add an equal pound of sugar and let it stand for 12 hours.

Make the marmalade

  1. Pour off the juice and boil it until it thickens into a syrup.

  2. Add the fruit to the syrup and boil until the fruit is tender and the mixture is thick.

Jar

  1. Transfer the marmalade to jelly glasses and cover with paraffin.

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. Orange + lemontop 1% of all pairs
    Smell alikestrong
    Cooked together10,634 recipes

    Shared aroma: 3-hexenal (apple, fruity).

  2. Orange + pineappletop 6% of all pairs
    Smell alikemoderate
    Cooked together1,664 recipes

    Shared aroma: ethyl isobutyrate (fruity, ethereal).

  3. Lemon + pineappletop 12% of all pairs
    Smell alikemoderate
    Cooked together1,964 recipes

    Shared aroma: 2-nonenal (fatty, green).

  4. Lemon + sugartop 18% of all pairs
    Smell alikelow
    Cooked together53,532 recipes

    Shared aroma: 2-nonenal (fatty, green).

  5. Pineapple + sugartop 19% of all pairs
    Smell alikelow
    Cooked together4,841 recipes

    Shared aroma: 2-nonenal (fatty, green).

Lemon and sugar barely smell alike, yet cooks put them together in 53,532 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

Sugar
Sweetens the fruit and, as it dissolves, thickens the syrup so the marmalade sets.
Oranges
Supply the bitter-sweet flavor and the pectin-rich pulp and peel that help the marmalade set.
Lemons
Add acidity that brightens the flavor and supports pectin setting.
Pineapple
Adds moisture and extra fruit body to the marmalade.

The step that matters

Boil the fruit until tender and thick. Boiling evaporates water and concentrates sugar and pectin. Stopping too early leaves a runny marmalade that will not set, while overcooking can make it dark and stiff.

Swap the pineapple

How well each one fits the dish's main ingredients (orange, lemon, sugar):

  1. Limefits better
  2. Vanillafits better
  3. Blueberryfits better
  4. Pineapplethe original

Fit is the average pairing score against orange, lemon, sugar. Candidates are from the same food group and used in at least 100 recipes.

“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.

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