Grilled Sockeye with Compound Butter - Bristol Bay Sockeye Salmon

Ingredients

• 1 1/2 cups finely chopped shallots or scallions
• 1 pound unsalted butter, divided
• 1/4 cup dry white wine
• 1/4 cup chopped mixed fresh leafy herbs, such as thyme, tarragon, dill, parsley, or basil
• 1 tablespoon finely grated lemon zest
• 2 tablespoons fresh lemon juice
• Salt and freshly ground pepper, to taste
• 1 1/2-pound sockeye salmon fillet, fresh or thawed
• 1 1/2 teaspoons kosher salt
• 1/2 teaspoon freshly-ground black pepper