Wellesley Marshmallow Fudge

This recipe is from Chocolate and Cocoa Recipes, a little chocolate cookbook printed in 1909.

Heat two cups of granulated sugar and one cup of rich milk (cream is better). Add two squares of Baker's Chocolate, and boil until it hardens in cold water. Just before it is done add a small piece of butter, then begin to stir in marshmallows, crushing and beating them with a spoon. Continue to stir in marshmallows, after the fudge has been taken from the fire, until half a pound has been stirred into the fudge. Cool in sheets three-quarters of an inch thick, and cut in cubes.