Emslie’s Salad Dressing. (1892.)
The yolk of 1 egg, a little pepper, salt, and just a pinch of dry mustard or a little made mustard; work into it gradually nearly 3/4 pt. of fresh sweet olive oil, 3 drops of essence of anchovy, a tea-spoonful of mixed chilli and tarragon vinegar (half and half), and a very little French vinegar. Add these gradually or alternately to the yolk of egg, working them all together carefully.
Whip up separately 1/2 pt. of cream with 1 dessertspoonful of powdered sugar, and add it to the rest.
For a salad of beetroot and Spanish onion sliced, pour the salad dressing over the vegetables when in the dish; but if for a lettuce salad, toss it well through, to blend.