Make your own canned tuna with this recipe for Bonito Fish Preserved in Oil. All you need is water, salt, olive oil, bay leaf, and of course, the fish. This recipe recommends bonito fish, but you can also use mackerel or tuna. This recipe provides you with step by step instructions for canning the fish in such a way that it maintains its moistness and flaky texture. Low in calories, this preserved fish will make a great addition to sandwiches, salads, or pasta dishes in the future.