Skip to main content
Dessert

Watermelon Rind Conserve

A preserve made from watermelon rind, lemon, ginger, sugar, and alum.

From an old cookbook · modernised transcription
From a historical cookbook (Internet Archive) · 7 ingredients
Jump to recipe ↓

Why it works: Lemon and ginger match in chemistry and in kitchens. They rank in the top 5% of all ingredient pairs, and cooks put them together in 5,154 recipes. Both carry beta-phellandrene, which smells minty, terpene. The science ↓

Watermelon Rind Conserve

Ingredients

Directions

Prepare the rind

  1. Pare off the green rind from the watermelon, leaving some pink pulp, and cut into squares or oblong strips.

  2. Soak the rind overnight in a solution of 1 ounce of alum dissolved in 1 gallon of water.

  3. In the morning, pour off the alum water and rinse the rind well.

Make the syrup and cook

  1. Prepare a syrup by combining 4 pints of sugar with 1 pint of water in a kettle.

  2. Add the prepared watermelon cubes, sliced lemons, and ginger root to the kettle.

  3. Pour the hot syrup over the mixture and cook until the cubes are clear.

  4. Remove the fruit and boil down the syrup until it reaches the desired richness.

  5. Return the fruit to the syrup and reheat.

Jar

  1. Pour into sterilized jars and seal immediately.

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. Lemon + gingertop 5% of all pairs
    Smell alikestrong
    Cooked together5,154 recipes

    Shared aroma: beta-phellandrene (minty, terpene).

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

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

  3. Sugar + lemontop 18% of all pairs
    Smell alikelow
    Cooked together53,532 recipes

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

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

Watermelon rind
Provides the bulk of the preserve and, once cooked clear, a firm, tender texture.
Sugar
Sweetens the preserve and, by concentrating in the syrup, helps preserve the fruit.
Alum
Firms the rind so it holds its shape rather than turning soft during long cooking.
Lemons
Add acidity that balances the sweetness and brightens the flavor.
Ginger root
Adds a warm, aromatic spice flavor to the syrup.

The step that matters

Boil down the syrup after removing the fruit. The syrup must be reduced to the desired richness before the fruit is returned. Concentrating the sugar thickens the syrup and helps preserve the fruit, so under-reducing leaves a thin, less stable preserve.

Swap the lemon

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

  1. Lemonthe original
  2. Orangefits about as well
  3. Limefits less well
  4. Vanillafits less well

Fit is the average pairing score against sugar, ginger. 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.

You might also like

Lemon CakeLemon Cake228 recipesGinger CookiesGinger Cookies213 recipesLemon IceLemon Ice147 recipesLemon SherbetLemon Sherbet103 recipes