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Boston Baked Beans

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

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

Ingredients

Directions

The book gives no oven temperature. The 300°F (150°C) in the steps was added when the recipe was transcribed, as a starting point.

Prepare the beans

  1. Wash the beans well and soak them overnight.

  2. Parboil the beans until tender but not soft, then strain and rinse with cold water.

Bake

  1. Place the beans in a baking pot and add salt, onion, mustard, and molasses (or sugar).

  2. Cover the beans with salt pork and pour in enough boiling water to nearly cover them.

  3. Cover the pot tightly and bake at 300°F (150°C) for 8 hours.

  4. Remove the cover for the last 30 minutes to allow the beans to brown.

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. Onion + mustardtop 6% of all pairs
    Smell alikestrong
    Cooked together9,259 recipes

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

  3. Beans + oniontop 7% of all pairs
    Smell alikestrong
    Cooked together5,242 recipes

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

  4. Onion + porktop 10% of all pairs
    Smell alikemoderate
    Cooked together18,214 recipes

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

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

Small white beans
Form the bulk of the dish, becoming tender and creamy during the long slow bake.
Molasses
Adds sweetness and deep colour to the beans as they bake.
Salt pork
Adds fat and savoury flavour that soaks into the beans as they cook.

The step that matters

Parboil the beans until tender but not soft. Beans cooked fully before baking can turn mushy during the long bake. Stopping at tender but firm lets them hold their shape while they finish cooking slowly in the oven.

Swap the onion

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

  1. Lettucefits better
  2. Welsh onionfits better
  3. Broccolifits better
  4. Onionthe original

Fit is the average pairing score against beans, mustard, molasses, 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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