Using a fork, flake the can of drained salmon. Squeeze in the juice of 1 lemon & give it a good dose of salt & pepper. Stir. Add in the crushed saltines, mayonnaise, Worcestershire sauce, minced onions (if using) & eggs. Stir til combined. Divide into 6-8 patties. Set aside.
Heat enough oil to cover a large skillet's bottom ¼" deep. Fry the salmon patties on one side until the edges become brown, then flip & fry the other side until browned. Drain on a paper towel lined plate.
Serve by themselves, or with a dipping sauce of your choice. I've eaten mine with ketchup ever since I was a girl myself.