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Roasted Sweetbreads

Roasted sweetbreads served with a butter and mushroom ketchup sauce.

From an old cookbook · modernised transcription
From a historical cookbook (Internet Archive) · 4 ingredients
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Why it works: Sauce and ketchup match in chemistry and in kitchens. They rank in the top 1% of all ingredient pairs, and cooks put them together in 1,099 recipes. Both carry ethanol, which smells alcoholic, ethereal. The science ↓

Roasted Sweetbreads

Ingredients

Directions

Prepare

  1. Parboil the sweetbreads until partially cooked.

  2. Allow them to cool, then coat with lard.

Roast and serve

  1. Roast in a Dutch oven until fully cooked.

  2. Serve with a sauce made of plain butter and mushroom ketchup.

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. Sauce + ketchuptop 1% of all pairs
    Smell alikestrong
    Cooked together1,099 recipes

    Shared aroma: ethanol (alcoholic, ethereal).

  2. Butter + mushroomtop 7% of all pairs
    Smell alikemoderate
    Cooked together12,525 recipes

    Shared aroma: trans-2-decenal (waxy, orange).

  3. Butter + saucetop 15% of all pairs
    Smell alikelow
    Cooked together15,338 recipes

    Shared aroma: ethanol (alcoholic, ethereal).

  4. Mushroom + ketchuptop 16% of all pairs
    Smell alikelow
    Cooked together2,225 recipes

    Shared aroma: ethanol (alcoholic, ethereal).

  5. Sauce + mushroomtop 19% of all pairs
    Smell alikelow
    Cooked together4,480 recipes

    Shared aroma: ethanol (alcoholic, ethereal).

Butter and sauce barely smell alike, yet cooks put them together in 15,338 recipes: they work on texture and structure more than aroma.

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

What each ingredient does

Sweetbreads
Main protein; parboiling firms them so they hold their shape during roasting.
Lard
Fat coating that promotes browning and a crisp, golden surface in the oven.
Plain butter
Enriches the sauce with fat, adding richness and a smooth, rounded mouthfeel.
Mushroom ketchup
Adds savoury umami depth to the butter sauce.

The step that matters

Parboil the sweetbreads until partially cooked. Parboiling firms the tissue and removes surface impurities, so the sweetbreads hold their shape and roast cleanly. Overcooking here leaves them dry and crumbly after roasting.

“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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