Richard Blais's Barely Smoked Salmon with Pumpernickel-Avocado-Egg Salsa and 'Everything Bagel' Vinaigrette

INGREDIENTS

• Cooking spray
• 1/2 cup hickory chips
• Four 4-ounce center-cut skin-on wild salmon fillets
• 2 cups cubed or roughly torn (1/2-inch pieces) pumpernickel bagel, pumpernickel bread, lightly toasted, or toasted pumpernickel croutons
• 1/2 small red onion, finely chopped
• 1 tablespoon capers, drained
• 1 ripe avocado, halved and pitted
• 8 cherry tomatoes, peeled
• 1 large hard-boiled egg, white and yolk separated
• 2 tablespoons chopped fresh flat-leaf parsley
• 1 teaspoon chopped fresh tarragon
• Kosher salt and freshly ground black pepper to taste
• , for serving