Found what I was looking for. American Cookery, 1796, by Amelia Simmons:
To alamode a round of Beef.
To a 14 or 16 pound round of beef, put one ounce salt-petre, 48 hours after stuff it with the following: one and half pound beef, one pound salt pork, two pound grated bread, chop all fine and rub in half pound butter, salt, pepper and cayenne, summer savory, thyme; lay it on scewers in a large pot, over 3 pints hot water (which it must occasionally be supplied with,) the steam of which in 4 or 5 hours will render the round tender if over a moderate fire; when tender, take away the gravy and thicken with flour and butter, and boil, brown the round with butter and flour, adding ketchup and wine to your taste.
Spence
To alamode a round of Beef.
To a 14 or 16 pound round of beef, put one ounce salt-petre, 48 hours after stuff it with the following: one and half pound beef, one pound salt pork, two pound grated bread, chop all fine and rub in half pound butter, salt, pepper and cayenne, summer savory, thyme; lay it on scewers in a large pot, over 3 pints hot water (which it must occasionally be supplied with,) the steam of which in 4 or 5 hours will render the round tender if over a moderate fire; when tender, take away the gravy and thicken with flour and butter, and boil, brown the round with butter and flour, adding ketchup and wine to your taste.
Spence