Roasted Red Onion and Blue Cheese Tart

Preheat the oven to 180˚C.

Cut the onions into quarters through the root end and place in a large baking dish with the vinegar and olive oil. Toss and season well. Roast for 30-40 minutes or until tender, turning occasionally. Try to keep the quarters whole when turning. Cool.

Pastry: Roll the pastry out on a lightly floured bench and line the tin. Bake blind for 20 minutes then remove the beans and paper and bake for a further 5-8 minutes or until the pastry is lightly golden and dry.

Reduce the oven temperature to 170˚.

Filling: Whisk all the ingredients, except the blue cheese, in a bowl and season.

Arrange the onions in the pastry case and gently pour over the filling. Break the blue cheese into pieces and place around the onions. Bake for 25-30 minutes until the filling is golden and set. Cool for 30 minutes.

To serve: Remove the tart from the tin, place on a serving platter and garnish with rocket. 

To bake blind: line a prepared pastry case with baking paper and fill with pie weights or dried beans. The beans support the pastry as it cooks. Bake in a preheated 190˚C - 200˚C oven for up to 20 minutes before removing the paper and weights. The shell should now have taken form. Return to the oven for the time specified in the recipe.