Grouper Saor

• 6 onions (sliced)
• 350 ml wine vinegar (red)
• 300 gr grouper fillets in (cut)
• 110 ml balsamic vinegar
• 110 ml virgin olive oil
• 80 gr golden seedless raisins soaked
• 55 ml additional virgin olive oil
• 34 gr pine nuts (toasted)
• 8 gr chives (fresh chopped)
• some virgin olive oil