Barbecued flatbreads with onion and feta

Bill Granger shows us how to make his tasty flatbreads with caramelised onion and feta on the barbecue.

Serves: 6

Ingredients400g plain flour2 tsp sea salt, plus extra to sprinkle1 tsp instant yeast2 tbsp olive oil, plus extra to brush

For the caramelised onion:2 tbsp olive oil1kg sliced onions1 tbsp soft brown sugar2 tbsp balsamic vinegarSea salt and pepperFlat leaf parsley

Method1. Sift the flour and salt into a large bowl and make a well in the centre. Stir the yeast and olive oil into 330ml lukewarm water and pour into the well in the dry ingredients. Mix to form a soft but firm dough.

• Transfer the dough to a lightly floured surface and knead for about 5 minutes until smooth and elastic. Put the dough in a lightly oiled bowl, cover with cling film and leave to rise in a warm place for 45 minutes.

• While the dough is rising, put 2tbsp olive oil and 1kg sliced onions in a heavy-based pan over medium heat and cook for 20 minutes, stirring occasionally.

• Add 1tbsp soft brown sugar, 2tbsp balsamic vinegar and sea salt and pepper. Cook for another 5 minutes, or until the onion is soft and caramelised. Leave to cool.

• Knock back the dough by punching it with your fist. Divide into 6 even balls and roll each ball into an oval about 5mm thick.

• Preheat a barbecue grill plate to hot. Brush each flatbread with olive oil and barbecue the 6 flatbreads one one side, then turn and top with caramelised onion. Cook again, with the lid closed if your barbecue has one, for 2-3 minutes until the bases are browned.

• Sprinkle with crumbled feta with lemon wedges. I sometimes intensify the flavour with sun-dried tomato paste or pesto before adding the toppings.