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Boston Baked Beans

A slow‑cooked bean dish with salt pork, molasses, mustard, and onions.

From an old cookbook · modernised transcription
From a historical cookbook (Internet Archive) · 5 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 moderate oven

Ingredients

Directions

The book says “a moderate oven”. The 350°F (175°C) in the steps is the modern equivalent, not the book's own figure.

Prepare the beans

  1. Soak the beans in cold water overnight.

  2. Drain and simmer the beans in fresh cold water until soft, being careful not to boil them too hard.

  3. If desired, boil one onion with the beans.

  4. Drain the beans in a colander, rinse with cold water, and transfer to a bean pot.

Prepare the pork

  1. Pour boiling water over the salt pork.

  2. Scrape the rind of the pork until white.

  3. Cut the pork into half-inch strips.

Assemble and bake

  1. Bury the pork in the beans, leaving only the rind exposed.

  2. Mix the salt, mustard, and molasses with enough hot water to fill a cup, then pour the mixture over the beans.

  3. Add more water to cover the beans, keeping them submerged until the last hour.

  4. In the last hour, lift the pork to the surface to let it crisp.

  5. Bake for 8 hours at 350°F (175°C).

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

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

  3. Pork + mustardtop 11% of all pairs
    Smell alikemoderate
    Cooked together2,445 recipes

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

  4. Molasses + mustardtop 23% of all pairs
    Smell alikelow
    Cooked together468 recipes

    Shared aroma: ethanol (alcoholic, ethereal).

  5. Beans + molassestop 26% of all pairs
    Smell alikelow
    Cooked together491 recipes

    Shared aroma: ethanol (alcoholic, ethereal).

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

What each ingredient does

Beans
Provide the starchy body of the dish, softening and thickening as they bake slowly.
Salt pork
Adds fat and savory flavor, and its rind crisps on the surface during the final hour.
Molasses
Contributes sweetness, dark color, and a deep caramel-like flavor as it bakes.
Mustard
Adds a sharp, tangy note that balances the sweetness of the molasses.

The step that matters

Keep the beans simmering gently and submerged. Boiling hard can break the bean skins and turn them mushy, while beans left exposed to air dry out and toughen during the long bake.

“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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