Sicilian Vegetable Stew

Ingredients

• 1 lg Onion chopped
• 3 Celery stalks; including
• ; chopped
• 3 tb olive oil
• 1 kg Aubergines; cut into 2.5cm
• ; inch) chunks (2
• ; 1/4lb)
• 1 tb Salted capers; soaked in
• ; 10 minutes, then
• ; drained
• 20 Green olives
• 1 tb Sugar
• 1 tb White wine vinegar
• 55 g Concentrated tomato paste;
• Salt and pepper