Rancid Butter Restored
Ingredients
Directions
Dissolve baking soda in cold water.
Work the rancid butter in the soda water until fully mixed.
Pour off the soda water and rinse the butter in clear, cold water three times.
Mix in salt if using 1 pound of butter.
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
- Butter
- The fat being treated; the soda water works on its sour free acids to reduce the rancid taste.
- Baking soda
- A mild alkali that neutralizes the acids responsible for the rancid, sour flavour in butter.
The step that matters
Rinsing the butter thoroughly. Soda left in the butter leaves an alkaline, soapy taste. Rinsing with fresh cold water several times removes the dissolved soda and the neutralized acids with it.
“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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