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Sauce

Mushroom Catsup

A fermented mushroom sauce made by mixing fresh mushrooms with salt and spices, then straining the liquid.

From an old cookbook · modernised transcription
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Mushroom Catsup

Ingredients

Directions

Prepare the mushrooms

  1. Collect fresh mushrooms on a dry day.

  2. Remove the stems and any dirt from the mushrooms.

  3. Chop the mushrooms finely and place them in a bowl.

Make the ketchup

  1. Add coarse sea salt and spices to the mushrooms. Mix well and let the mixture sit for a few hours.

  2. Strain the mixture to extract the liquid.

  3. Bottle the liquid and seal it for storage.

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

What each ingredient does

Fresh mushrooms
Provide the main flavour and the liquid that is extracted for the ketchup.
Coarse sea salt
Draws moisture out of the mushrooms and helps preserve the mixture.

The step that matters

Let the salted mixture sit. Salt needs time to draw liquid out of the chopped mushrooms. Resting the mixture for a few hours lets enough liquid form to strain off, so the ketchup is not thin or weak.

“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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