Put salmon in a large bowl, juice included (remove any bones). Use a fork to pull salmon apart to remove any large chunks. Add the eggs and mix together using the fork. Add onion, parsley, salt, pepper, and 1 heaping cup cracker crumbs. Scoop out salmon mixture (about the size of a large meatball) and form into a cake. Repeat with the rest of the salmon mixture.
Fill a small dish with more crackers crumbs and dip each salmon cake on both sides into the crumbs. Fry in a frying pan with canola oil. Brown on both sides.