I got this recipe form my mom and it has became one of my favorite ways to prepare salmon. It's super easy and fast to prepare and the result is amazing. Mayonnaise ensures that the salmon remains succulent, while the sweetness and tanginess from the ketchup perfectly complements and balances the richness of the salmon. All of this is topped with loads of chopped cilantro and scallion to provide not only freshness, and an extra dimension of flavor, but also textural contrast. It always amazes me that so few elements can be brought together so quickly into something so good. —Cookinginchinglish
Rub salt on both sides of the salmon and place it skin side down on a lined baking sheet. Sprinkle black pepper on the top side of the salmon.
Apply the mayonnaise on the salmon, followed by a layer of ketchup on top. Remember to apply more on the thicker side of the salmon. Let it sit for 10 minutes before baking (you can skip this step if you are in a hurry).
Bake the salmon for 15 minutes. In the meantime, mix scallion and cilantro together in a bowl.
Once baking is complete, remove the tray from the oven and immediately top with scallion and cilantro.