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Dessert

To Render Down or Clarify Fat

A method for rendering or clarifying fat by boiling and straining.

From an old cookbook · modernised transcription
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To Render Down or Clarify Fat

Ingredients

Directions

Prepare the fat

  1. Cut the fat into small pieces, removing any burnt or discolored scraps.

  2. Place the fat in an iron stew-pan and cover it with cold water.

Render

  1. Bring to a boil without a lid, stirring occasionally and skimming off any froth or scum.

  2. Boil until all the water has evaporated.

  3. Move the pan to a cooler part of the fire to melt the fat gradually, stirring frequently to prevent burning.

  4. When the pieces look shriveled, remove the pan from the heat and let it cool for a few minutes.

Strain and store

  1. Strain the fat through muslin or an old sieve and let it cool completely before use.

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

Pieces of beef, mutton, or bacon fat
Supplies the fat that melts out to become the rendered cooking fat.
Cold water
Boils off first, carrying out moisture so the fat can melt without spattering.

The step that matters

Moving the pan to a cooler part of the fire. Melting fat slowly over gentle heat keeps the tissue from scorching, which would give the rendered fat a burnt, bitter taste. Frequent stirring spreads the heat and prevents sticking.

“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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