
A historical soup from The White House cook book; a comprehensive cyclopedia of information for the home .. (1913).
Preserved exactly as written in the original source
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Put in a stewpan the lettuce, onion, parsley and butter, with one pint of water, and let them simmer till tender
Season with salt and pepper
When done, strain off the vegetables, and put two-thirds of the liquor with the stock
Beat up the yolks of the eggs with the other third, toss it over the fire
At the moment of serving add this with the vegetables to the strained-off soup
Modern guidance to help you succeed with this vintage recipe
Sweating the vegetables in butter before adding to stock extracts their flavor compounds while keeping them tender, a technique that builds deeper flavor than simply boiling. The egg yolk liaison (a classic French technique) thickens the soup through protein coagulation while adding richness and body. Heating the yolks with reserved cooking liquid tempers them gradually, preventing scrambling and creating a silky, velvety texture.
The vegetable base can be cooked through step 3 up to 2 days ahead and refrigerated in an airtight container. When ready to serve, reheat the strained soup gently, then prepare the egg liaison fresh and add the reserved vegetables just before serving. Do not prepare the egg liaison in advance as it will not hold properly.
Store leftover soup in an airtight container in the refrigerator for up to 3 days. Note that the egg liaison may separate slightly upon storage. Reheat gently over low heat, whisking occasionally to re-emulsify. Do not boil, as this will cause the eggs to curdle. For best results, consume within 2 days.
AI-generated tips from Chef Cecil's culinary database
The vegetable base can be cooked through step 3 up to 2 days ahead and refrigerated in an airtight container. When ready to serve, reheat the strained soup gently, then prepare the egg liaison fresh and add the reserved vegetables just before serving. Do not prepare the egg liaison in advance as it will not hold properly.
Store leftover soup in an airtight container in the refrigerator for up to 3 days. Note that the egg liaison may separate slightly upon storage. Reheat gently over low heat, whisking occasionally to re-emulsify. Do not boil, as this will cause the eggs to curdle. For best results, consume within 2 days.