Ingredients

• 4 8-ounce red snapper fillets, each cut crosswise in half
• All purpose flour
• 1 1/2 cups olive oil
• 1 1/2 medium onions, thinly sliced
• 1 1/2 teaspoons dried crushed red pepper
• 8 garlic cloves, thinly sliced
• 1 1/2 tablespoons dried rosemary
• 1/2 cup sweet white wine (such as Muscat)
• 3 tablespoons tomato juice
• 1 1/2 cups chopped plum tomatoes
• 1/2 cup plus 1 1/2 tablespoons red wine vinegar
• Fresh rosemary sprigs (optional)
• Cherry tomatoes, halved (optional)

Instructions

1. Sprinkle fish with salt and pepper. Coat with flour. Heat 3/4 cup oil in heavy large skillet over high heat. Sauté fish in batches until golden brown, about 5 minutes per side. Transfer to paper towels to drain. Discard oil; wipe out skillet.
2. Heat remaining 3/4 cup oil in same skillet over medium-high heat. Add onions and crushed red pepper. Sauté until onions are tender, about 4 minutes. Add garlic and dried rosemary; sauté 1 minute. Carefully add wine and tomato juice; simmer 2 minutes. Add chopped tomatoes and vinegar; simmer until sauce thickens slightly, about 8 minutes. Add fish; simmer until opaque in center, turning fish once, about 2 minutes. Arrange fish in single layer in 13x9x2-inch baking dish. Season sauce with salt and pepper; pour over fish. Cover and refrigerate at least 1 day and up to 2 days, turning fish once. Arrange fish and sauce on platter. Bring to room temperature. Garnish with rosemary and tomato halves, if desired.