To each egg 1/2 its weight in grated cheese and a 1/2 oz. of butter (if only 1 egg is prepared 1/2 oz. of butter must be used); mustard, pepper, and salt to taste. Whip up the EGGS, add 1 dessertspoonful of water for each egg, as in the previous recipe; mix in the cheese, a little made mustard, and pepper and salt. Heat the butter in a frying-pan or small stewpan. When hot stir in the mixture of egg and cheese. Keep stirring it with a knife, until it becomes a smooth and thickish mass. Put on hot buttered toast, and serve. This is an extremely tasty French dish. The mixture, when cold, is excellent for sandwiches.
The Allinson Vegetarian Cookery Book, by Thomas R. Allinson (Year 1915)