4 whitefish fillets, skin on (patted dry with paper towels)
Directions
Combine corn, red onion, avocado, tomato,
red wine vinegar, lime juice, 1½ Tablespoons olive oil, and basil in a medium
bowl. Season with salt and pepper.
Season fish with salt and pepper. Melt
butter and remaining 1 Tablespoon olive oil in a large skillet over medium-high
heat until butter is foaming.
Add fish, skin side-down, and cook,
pressing gently on back of filets to ensure good contact with skin, until skin
is crisp, 3 to 5 minutes. If skin shows resistance when attempting to lift with
a spatula, allow it to continue to cook until it lifts easily. Flip fish and
cook until just cooked through, 2 to 3 minutes.
Transfer fish to plates, top with relish
and serve immediately.