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Boston Baked Beans

A slow-cooked bean dish with bacon, molasses, and spices.

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 350°F (175°C) in the steps was added when the recipe was transcribed, as a starting point.

Prepare the beans

  1. Soak the beans overnight in fresh water.

  2. Drain the beans and place them in a kettle with enough water to cover. Parboil until the skins are shriveled.

  3. Drain the water and add salt to the beans.

Season and bake

  1. Place the piece of bacon in the middle of the beans.

  2. In a cup, mix the molasses or brown sugar, baking soda, and mustard. Add this mixture to the beans and cover with warm water.

  3. Bake at 350°F (175°C) for five hours, checking to ensure the water does not dry out until the beans are thoroughly cooked.

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

    Shared aroma: ethanol (alcoholic, ethereal).

  3. 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

Small beans
Form the main body of the dish, becoming tender and creamy as they cook through.
Bacon
Adds savory, smoky fat that flavors the beans as they slowly bake.
Molasses or brown sugar
Provides sweetness and color, and helps the beans brown during long baking.
Baking soda
Raises the cooking liquid's pH, which helps the bean skins soften.
Mustard
Adds a sharp, tangy note that balances the sweetness of the molasses.

The step that matters

Checking the water during the long bake. Beans need enough liquid over five hours of baking. If the water dries out, the beans can scorch and stay firm, so topping up with warm water keeps them moist and cooking evenly.

Swap the beans

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

  1. Beansthe original
  2. Lentilsfits about as well
  3. Chestnutfits less well
  4. Chickpeafits less well

Fit is the average pairing score against molasses, mustard. 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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