Crispy Salmon Skin

Crispy Salmon Skin

Ingredients 2 (6-ounce) pieces center-cut salmon fillet with skin, about 1-inch thick Kosher salt and freshly cracked black pepper 3 tablespoons unsalted butter, softened and divided 1 teaspoon finely grated lemon zest 1 tablespoon lemon juice 1 teaspoon Dijon mustard...