Recipe for Mayonnaise

- 1 egg yolk
- 1/2 level teaspoon dry mustard
- 1/2 level teaspoon salt
- 1/2 level teaspoon sugar
- 1/2 level teaspoon pepper
- 1/2 pint (236ml) salad oil
- 1 tablespoon white vinegar or lemon juice
1. Put egg yolk and seasonings in a basin. Mix really well using a wooden spoon.
2. Add oil, drop by drop at first, stirring briskly with a wooden spoon.
3. When very thick add a teaspoon of vinegar, then remaining oil a little more quickly, then beat in rest of vinegar as required. it should be thick enough to hold the impression of the spoon.
Beat into the finished mayonnaise 2 teaspoons of lemon juice or 2 teaspoons of cream.