Soup from the Past: Grapenuts Broth

Snowy day and soup: a perfect combination. Today I got out my virtual copy the 1909 Washington Women’s Cook Book–sold back then to help finance the votes-for-women campaign–and read through recipes for soup. In among the usual ones for potatoes and tomatoes was this:

Really? There’s no such thing as a grapenut. Could Gertrude mean the crunchy, vaguely sweet cereal that seems to have been part of American breakfasts forever, the one our parents and grandparents ground their teeth on?

The short a...