Slow-cooked onion and gruyere quiche

If you can, have this gruyere tart warm from the oven. Get the pastry baked earlier in the day so you can just fill it and bake. The subtle flavour of gruyere marries well with slow-cooked onions and fresh herbs.

If you can, have this gruyere tart warm from the oven. Get the pastry baked earlier in the day so you can just fill it and bake. The subtle flavour of gruyere marries well with slow-cooked onions and fresh herbs.