{"id":4499,"slug":"green-hollandaise-sauce","title":"Green Hollandaise sauce","description":"From The Hotel St. Francis Cook Book (1919) by Victor Hirtzler.","ingredients_raw":["one pint of Hollandaise sauce","one spoonful of green coloring (Vert d'épinards)"],"ingredients_norm":["hollandaise sauce","green coloring"],"steps":["Mix one pint of Hollandaise sauce with one spoonful of green coloring (Vert d'épinards)."],"categories":[],"prep_time_minutes":null,"cook_time_minutes":null,"total_time_minutes":null,"servings":null,"yield_text":null,"difficulty":null,"source_name":"gutenberg","source_url":"https://www.gutenberg.org/ebooks/39550","source_ref":"pg:39550:w16:3","authors_url":null,"license":"Public domain (US)","license_url":null,"extraction_confidence":0.95,"content_hash":"c062f6311229ae95161a8c610b35373638172ad0669f7be8671cad12d88c0f87","created_at":"2026-08-02T16:37:02Z","updated_at":"2026-08-02T17:11:32Z","notice":"Historical recipe (1919), reproduced as published: it may reflect its era's ingredients, language, and food-safety practices. Apply modern judgment on cooking temperatures and preservation.","url":"https://recipecontextprotocol.com/recipes/green-hollandaise-sauce"}