Caramelised onion tart | Australian Onions

Ingredients

• 2 tbsp extra virgin olive oil
• 2 large red onions, peeled and finely chopped
• 2 large brown onions, peeled and finely chopped
• 1 tbsp balsamic vinegar
• 2 tbsp brown sugar
• 2 sheets of frozen short crust pastry
• 1 cup tasty cheese, grated
• 2 eggs
• ⅔ cup cream
• 2 tbsp parmesan cheese
• Salt and pepper to taste
• Thyme leaves
• Rocket salad to serve.