Directions:
The white part between the yellow rind and the inner skin of the orange used to be most sedulously removed, but now we know that there is great economy in using it. By doing so we can use large quantities of water in proportion to fruit, for it has the property of converting this into jelly.

The Seville orange used to be the orange used in Scotland and England for marmalades because of its bitter flavor, but we can get the same effect by using the grapefruit. An all grapefruit marmalade is not nearly so attractive and pretty as one of combined fruits, nor does it have the zest that the grapefruit seems to give to a marmalade where it is only one of the constituents.