Both British and American troops were issued "pease" during the Revolution. How did they prepare them? Here is one recipe from the previous war in America:
"In the times of greatest plenty, which I have ever seen since I came into the country, a soop [sic] made of King's pease, with a piece of pork in it, composed the principal dish in our bill of fare; and, indeed, we should have made a very indifferent repast without it (February 28, 1758)".
Captain John Knox, An Historical Journal of the Campaigns in North America for the years 1757, 1758, 1759, and 1760, edited with introduction, appendix and index by Arthur G. Doughty, (Freeport, New York) Books for Libraries Press, 1970