Butter-Poblano Herring with Caramelized Onions

This delightful dish features tender herring fillets cooked in a rich butter sauce, complemented by the smoky sweetness of roasted poblano peppers and the deep flavors of caramelized onions. The combination of ingredients creates a harmonious balance of flavors, making it a unique yet approachable main course. It's perfect for those looking to explore seafood with a twist while respecting traditional culinary principles.

Ingredients:

• 4 herring fillets, skinless
• 2 tablespoons unsalted butter
• 1 medium onion, thinly sliced
• 1 poblano pepper, roasted and diced
• 1 clove garlic, minced
• Salt and pepper to taste
• 1 tablespoon fresh parsley, chopped (for garnish)
• Lemon wedges (for serving)

Instructions:

1. 1. Start by roasting the poblano pepper over an open flame or under a broiler until the skin is charred. Place it in a bowl, cover with plastic wrap, and let it steam for about 10 minutes. Once cooled, peel off the skin, remove the seeds, and dice the pepper.
2. 2. In a large skillet, melt the butter over medium heat. Add the sliced onions and cook slowly, stirring occasionally, until they are caramelized and golden brown, about 15-20 minutes.
3. 3. Add the minced garlic to the onions and cook for an additional minute until fragrant.
4. 4. Push the onions to one side of the skillet and add the herring fillets to the other side. Season both the herring and onions with salt and pepper. Cook the herring for about 3-4 minutes on each side or until cooked through.
5. 5. Once the herring is cooked, gently stir in the diced poblano pepper and mix with the onions to combine the flavors.
6. 6. Serve the herring on a plate, topped with the caramelized onions and poblano mixture. Garnish with fresh parsley and serve with lemon wedges on the side.