Chilean Ceviche - Fresh-Pressed Olive Oil

Ingredients

• 1 pound sushi-grade boneless, skinless white fish, such as red snapper, halibut, or grouper
• 1 small red onion, peeled and thinly sliced lengthwise
• 1/2 red bell pepper, seeded and diced
• 1 jalapeño, stemmed, seeded, and finely diced
• 1 1/2 teaspoons coarse salt (kosher or sea) or more to taste
• 1/2 teaspoon freshly ground black pepper
• 1 teaspoon merkén (optional)
• Juice of 4 limes or lemons
• 1/4 cup chopped fresh cilantro leaves
• 3 tablespoons extra virgin olive oil
• Toast points, lettuce cups, or tortilla chips, for serving