- ¼ cup butter ½ cup hot water
- 1 tablespoon flour 1 egg yolk
- ½ teaspoon salt 1 tablespoon lemon juice
- Few grains cayenne
Cream half of the butter with flour, salt, and cayenne; add hot water, and cook over hot water for ten minutes, stirring constantly until thickened; add egg yolk slightly beaten, lemon juice, and remainder of butter; cook about two minutes, or until thick; beat well, and serve at once.
Better Meals for Less Money, by Mary Green (Year 1909)