I've been making baked gefilte fish in a loaf pan for the last 4 yrs. it sure bets out anything from a jar and slices well too I don't have access to traditional carp, whitefish and pike so use cod and other white flesh fish indigenous to our waters like snapper. I've done it with a blend of salmon too which was also good. Any good fish will do (I know many traditional Jewish grandmothers will disagree) but it taste really good made fresh and anything beats out the stuff from the jars