Preheat oven to 400F. Prepare a 13x9 dish by spraying with olive oil spray.
Add 1 teaspoon of the lemon juice to the melted butter and stir until combined. Brush some of the butter mixture onto the salmon filets. Reserve the rest of the butter for the sauce step later.
3 Tablespoons butter, 2 pounds center cut salmon
Season filets (to taste) with garlic salt and lemon pepper.
Place filets into the prepared 13x9 baking dish. Place 2 lemon slices on each filet. Season with additional garlic salt and lemon pepper if desired.
8 lemon slices
Bake salmon in preheated oven for 15 minutes. To brown it, turn up to broil and, watching it carefully, broil for 2-5 minutes.
While the fish is baking, prepare the sauce. Place remaining butter in a skillet or saucepan over medium heat. Add garlic if you like. Saute for less than a minute, then add the remaining lemon juice and lemon zest.
1 teaspoon minced garlic, 1 Tablespoon lemon zest
In a separate bowl or measuring cup, whisk together cornstarch and water. When the sauce mixture begins to boil, drizzle in the cornstarch slurry, whisking continuously. Turn off the heat when thickened.
1/2 teaspoon cornstarch, 3 Tablespoons water
Remove salmon from the oven. Brush generously with lemon butter sauce.
One medium sized lemon will yield 3-4 Tablespoons of juice, whereas one large lemon should yield 4-5 Tablespoons of juice. I like to play it safe and grab two medium lemons just in case one doesn't produce as much juice. Keep in mind you'll need the zest from the lemon as well, and one medium lemon will be plenty for that. You can use the extra (or the same one) to slice and top the salmon with!
We use garlic salt in many of our recipes. If you prefer table salt or Kosher salt, season as you wish. Keep in mind that garlic salt actually has less sodium than regular table salt and it has the added benefit of flavor from the garlic powder.
The lemon sauce is VERY lemony. While we don’t suggest tasting it on its own, it’s the perfect complement to the baked fish!