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Boston Baked Beans

A slow‑cooked bean dish with salt pork, mustard, sugar, and cayenne pepper.

From an old cookbook · modernised transcription
From a historical cookbook (Internet Archive) · 7 ingredients
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Why it works: Beans and mustard match in chemistry and in kitchens. They rank in the top 4% of all ingredient pairs, and cooks put them together in 852 recipes. Both carry 2-isopropyl-3-methoxypyrazine, which smells earthy, pea. The science ↓

Boston Baked Beans

Oven, in the book's wordsA hot oven

Ingredients

Directions

The book says “a hot oven”. The 400°F (200°C) in the steps is the modern equivalent, not the book's own figure.

Prepare the beans

  1. Pick over the beans, wash them, and soak overnight in cold water.

  2. In the morning, heat the beans to a simmering point.

Season and bake

  1. Mix the salt, mustard, sugar, and cayenne pepper with the beans.

  2. Transfer the mixture to an earthen bean pot.

  3. Score the rind of the salt pork and place it on top of the beans.

  4. Fill the pot with hot water, cover tightly, and bake at 400°F (200°C) for 12 to 24 hours, depending on desired color.

  5. Add hot water frequently to keep the beans moist.

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. Beans + mustardtop 4% of all pairs
    Smell alikestrong
    Cooked together852 recipes

    Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).

  2. Mustard + peppertop 9% of all pairs
    Smell alikemoderate
    Cooked together15,430 recipes

    Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).

  3. Beans + peppertop 11% of all pairs
    Smell alikemoderate
    Cooked together4,733 recipes

    Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).

  4. Beans + porktop 11% of all pairs
    Smell alikemoderate
    Cooked together2,000 recipes

    Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).

  5. Mustard + porktop 11% of all pairs
    Smell alikemoderate
    Cooked together2,445 recipes

    Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).

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

What each ingredient does

Pea beans
Provide the bulk of the dish and, once slow-baked, a soft, tender texture.
Salt pork
Adds fat and savoury flavour that renders into the beans during the long bake.
Sugar
Adds sweetness and, with prolonged baking, helps the beans brown and darken.
Mustard
Adds a sharp, tangy note that balances the sweetness of the sugar.

The step that matters

Keeping the beans moist during the long bake. Over 12 to 24 hours the water in the pot evaporates and the beans can dry out or scorch. Adding hot water regularly keeps the beans submerged so they cook evenly and soften rather than toughen.

Swap the beans

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

  1. Beansthe original
  2. Black-eyed peafits about as well
  3. Chestnutfits about as well
  4. Sesamefits about as well

Fit is the average pairing score against mustard, sugar, pepper, pork. 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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