Name: Boar's Head Sauce
Ingredients: rind of 2 oranges, sliced; 2-3 lumps of sugar; 6-7 tablespoons red currant jelly; a little white pepper; 1 shallot, minced; 1 tablespoon mixed mustard; enough port wine to achieve a thick consistency

Why it works: Shallot and mustard match in chemistry and in kitchens. They rank in the top 3% of all ingredient pairs, and 842 recipes mention both. Both carry eucalyptol, which smells eucalyptus, herbal. The science ↓

The recipe

Ingredients

Contains: milk (auto-detected from the ingredients and method; we can miss things, so check labels)

rind of 2 oranges, sliced
2-3 lumps of sugar
6-7 tablespoons red currant jelly
a little white pepper
1 shallot, minced
1 tablespoon mixed mustard
enough port wine to achieve a thick consistency

Also mentioned in the method: cream

Directions

Rub the sugar on 2 whole oranges.
In a basin, combine the sugar, red currant jelly, white pepper, minced shallot, mixed mustard, and port wine until thick like cream.
Add the thinly sliced orange rind and mix well.
Bottle the sauce for later use.

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 aroma chemistry they share, and how many recipes mention both.

Shallot + mustardtop 3% of all pairs

Aroma overlapstrong

Mentioned together842 recipes

Shared aroma: eucalyptol (eucalyptus, herbal).
Orange + red curranttop 3% of all pairs

Aroma overlapmoderate

Mentioned together124 recipes

Shared aroma: nonanal (fat, citrus).
Red currant + port winetop 4% of all pairs

Aroma overlapstrong

Mentioned together118 recipes

Shared aroma: isoamyl acetate (banana, pear).
Shallot + port winetop 4% of all pairs

Aroma overlaplow

Mentioned together368 recipes

Shared aroma: 1-octen-3-ol (mushroom, earthy).
Red currant + shallottop 7% of all pairs

Aroma overlapstrong

Mentioned together49 recipes

Shared aroma: 1-octen-3-ol (mushroom, earthy).

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

What each ingredient does

Red currant jelly: Provides sweetness and body, giving the sauce its thick, glossy texture.
Port wine: Thins the mixture to a thick, creamy consistency and adds depth of flavor.
Orange rind: Adds bright citrus aroma and flavor from the peel's oils.
Mixed mustard: Adds sharp, pungent flavor that balances the sweetness of the jelly.

Flavor stand-ins for the white pepper

How well each one fits the dish's main ingredients (orange, sugar, red currant, shallot, mustard, port wine):

Thymebetter flavor fit
Cinnamonbetter flavor fit
Gingerbetter flavor fit
White pepperthe original

Fit is the average pairing score against orange, sugar, red currant, shallot, mustard, port wine. Candidates are from the same food group and used in at least 100 recipes. This compares flavor only: it does not check the job the ingredient does in the dish (bulk, moisture, acidity, structure).

“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.