Tilapia en Papillote (Tilapia in Parchment)

INGREDIENTS

• 4 (4 ounce) fillets tilapia
• salt and ground black pepper to taste
• 1 large tomato, chopped
• 3 cloves garlic, finely chopped
• 4 fresh basil leaves, chopped
• 1 1/2 teaspoons capers, drained
• 4 teaspoons lemon juice
• 1/4 cup butter, divided
• 1 cup white wine
• 1 tablespoon butter, or as needed