Sweet Brown Bread:
Take one quart of rye flour, two quarts of coarse Indian meal, one pint wheat meal half a teaspoon of molasses…and one gill of potato yeast.
Mingle the ingredients into as stiff a dough as can be stirred with a spoon, using warm water for wetting.
Let it rise several hours, or over night; then put it in a large deep pan, and bake five or six hours.
This would be a much more wholesome “wedding cake” than we are accustomed to have proffered us on certain interesting occasions.
From Health, or, How to Live (1865) by James White
(Brown sugar was suggested as an alternative to molasses, or molasses an alternative to brown sugar, but I removed that, because molasses hopefully would be sufficient, but you might like to try a coconut or organic sugar.)