Gravlax with Golden Caviar Sauce

Ingredients

• For the Gravlax (Cured Fresh Salmon)
• 1 whole salmon, 5 to 6 pounds, cleaned, boned, head, tail, and fins removed, to yield 2 whole skin-on fillets
• 1 cup chopped fresh dill
• 1/4 cup kosher salt
• 1/4 cup freshly ground coarse black pepper
• 2 tablespoons sugar
• For the caviar sauce and toast
• 2 cups organic sour cream or creme fraiche
• 1/4 cup domestic golden caviar or salmon roe
• Freshly ground black pepper
• 2 thin slices per person brioche loaf or other rich bread
• 1/4 cup chopped fresh dill