French Onion Tart

French Onion Tart

The South African cook and food blogger, Elmarie Berry has recently launched her recipe book Kosbaar. This is my interpretation of her delicious French Onion Tart.

1 batch Caramelised Onions, search the recipe on this blog
250g puff pastry, store bought
250ml sour cream
2 eggs
30ml thyme leaves
parmesan cheese, to grate on top

Preheat your oven to 200℃ and spray a 20cm loose bottom tart tin with cooking spray.
Line the tart tin with the puff pastry.
Spoon the cooled Caramelised Onions into the unbaked tart shell and spread it out evenly.
Whisk the sour cream, eggs and thyme together and pour over the onions.
Grate a good amount of Parmesan cheese on top and bake in the oven for 20 minutes.
Cool the tart on a cooling rack before taking it out of the tart tin.
Serve at room temperature.

Caramelised Onions

Caramelised Onions

When onion is caramelised to perfection it has a rich flavour and makes a great accompaniment to cold meats, patés, terrines and even a base for savoury tarts. This recipe yields about 500ml of caramelised onions that will keep for 2-3 days in the refrigerator.

30ml butter
15ml vegetable oil
5 large onions, sliced
a pinch of salt
30ml brown sugar
45ml balsamic vinegar

Heat the butter and oil in a large frying pan over low heat.
Add the sliced onions and a generous pinch of salt and cook for 20 minutes. Stir the onions once or twice to prevent them from catching but not too often as it will prevent the caramelisation process.
Add the sugar and balsamic once the onions are soft and golden in colour.
Cook over a low heat for another 10-15 minutes.
Stir occasionally until the onions are sticky and caramelised.