Tomato & caramelised onion tart tatin - Good Food Middle East

Ingredients

• 50g butter
• 1 tbsp olive oil
• 1 large onion, cut into thin wedges
• 1 tsp sugar
• 85g butter
• 175g self-raising flour
• 50g parmesan, finely grated
• small handful fresh thyme leaves
• 1 large free range egg yolk
• 25g butter
• 1 fat garlic clove, thinly sliced
• 5 plum tomatoes, halved lengthways
• several sprigs of thyme
• 300g pkt cherry tomatoes