Step 1

Make the salmon burgers

Step 2

Add the salmon to the base of a food processor and pulse 15 times until broken down into 1/8-inch pieces

Step 3

Transfer 3/4 of the shredded salmon to a large bowl and pulse the remaining salmon until a paste forms, about 15 more times

Step 4

Add the salmon paste, onion powder, garlic powder, Old Bay seasoning, mustard powder, lemon juice, and chives and mix until combined

Step 5

Line a plate with parchment paper

Step 6

Divide the salmon mixture into 4 equal patties

Step 7

Cook immediately or cover and place in the refrigerator for up to 24 hours

Step 8

Heat the oil in a large skillet over medium heat

Step 9

Add the salmon patties and cook until golden brown on the bottom, about 3 minutes

Step 10

Flip and add a piece of cheese on top of each patty, then cook until golden brown, 3 minutes more

Step 11

Be careful not to overcook the salmon.Meanwhile make the Old Bay Mayonnaise

Step 12

In a small bowl, stir together the mayonnaise, chives, Old Bay seasoning, and lemon juice

Step 13

Spread the Old Bay Mayonnaise on the cut sides of the buns

Step 14

Add the salmon burgers, cheese-sides up, to the bottom buns

Step 15

Top with caramelized onions, avocado, and top buns