Complex sentence: He was helpful when the expedition encountered French trappers from Canada and he served as a cook; his recipe for "boudin blanc" (a sausage made from bison meat) was praised by several members of the party.
Split into simpler sentences: He was helpful when the expedition encountered French trappers from Canada. He served as a cook; his recipe for "boudin blanc" (a sausage made from bison meat) was praised by several members of the party.