A recipe for making mayonnaise dressing – Beat the yolk of one egg in a cold dish with a silver or wooden fork. If the weather is very warm, place the bowl in a larger vessel filled with chopped ice. When the egg is beaten add one-half teaspoon of salt, dash of red pepper, one-half teaspoon of English mustard and olive oil, drop by drop, being careful to beat well without reversing the motion for fear of curdling. When the dressing thickens, begin adding the vinegar or lemon juice, drop by drop. Then add more olive oil, then more acid, continuing until one cup of olive oil and two teaspoons of vinegar or lemon juice are all used. Be sure to have all the ingredients and dishes as cold as possible. If the mixture should curdle, begin immediately with a fresh egg in a fresh dish and when it is well beaten add carefully the curdled mixture, drop by drop. To serve twenty people one pint of mayonnaise is required.