
A historical sauce from The White House cook book; a comprehensive cyclopedia of information for the home .. (1913).
Preserved exactly as written in the original source
Take fresh spinach or beet leaves and pound them in a marble mortar
If you want it for immediate use, take off the green froth
Modern guidance to help you succeed with this vintage recipe
Pounding fresh greens ruptures cell walls, releasing chlorophyll-containing chloroplasts that create a vibrant green pigment. The mechanical action breaks down the cellular structure more effectively than cutting, maximizing color extraction. Using leaves immediately after pounding prevents oxidation, which causes chlorophyll to degrade into brown pheophytin when exposed to air and light.
Natural chlorophyll coloring degrades rapidly and is best used immediately. If necessary, the extracted green liquid can be stored in an airtight container in the refrigerator for up to 4 hours, though color will fade. Press plastic wrap directly on the surface to minimize oxidation.
Fresh chlorophyll coloring does not store well due to rapid oxidation. For longer storage (up to 1 week), blanch leaves for 30 seconds before pounding to deactivate enzymes, though this will slightly alter the color tone. Freeze in ice cube trays for up to 1 month, but expect significant color loss.
AI-generated tips from Chef Cecil's culinary database
Natural chlorophyll coloring degrades rapidly and is best used immediately. If necessary, the extracted green liquid can be stored in an airtight container in the refrigerator for up to 4 hours, though color will fade. Press plastic wrap directly on the surface to minimize oxidation.
Fresh chlorophyll coloring does not store well due to rapid oxidation. For longer storage (up to 1 week), blanch leaves for 30 seconds before pounding to deactivate enzymes, though this will slightly alter the color tone. Freeze in ice cube trays for up to 1 month, but expect significant color loss.
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