steamboat

verb, to cook or boil at high heat such that steam is produced

“You had to walk by the kitchen to get to where you sat down to eat, and they had two cookstoves in there just steamboating.”

“They’d have a chicken supper in the middle of the winter along in February in the parish hall upstairs. And they’d have a dance going downstairs and all these people upstairs and two or three cookstoves just steamboating, you know, heating the gravy and potatoes and all this kind of stuff.”