Solid Sauce
Work well into 1⁄2 cup of the freshest butter, 1 cup of powdered white sugar, adding the white of an egg, well beaten, and worked in with a large spoonful of California brandy, or a couple of spoonfuls of good sherry or California white-wine; working all of these well together, that the ingredients may be thoroughly incorporated, and season with nutmeg or cinnamon, or both, as may be preferred.