Roasted tomato tart with double-cheese crust - Good Food Middle East

Ingredients

• 3-4 onions, sliced
• 1 tbsp butter
• olive oil, for drizzling
• 2 tsp sugar, plus a pinch
• 2 thyme sprigs leaves stripped, plus an extra sprig
• 5 sage leaves, shredded then finely chopped
• 85g fresh breadcrumbs
• 25g fresh Parmesan (or vegetarian alternative), grated
• 500g tomatoes (a mix of varieties looks great), thickly sliced
• 300g plain flour, plus extra for dusting
• 100g cold butter, cubed
• 85g mature cheddar, cubed
• ½ tsp salt
• 25g parmesan (or vegetarian alternative), grated
• green salad, to serve (optional)