Red Onion, Feta and Olive Tart

This recipe comes from one of my random vegetarian recipe books and is a firm favourite in my house. Apart from the caramelizing of the onions, the rest of the tart requires virtually no prep whatsoever (especially as I usually use pre-rolled puff pastry). Green or black olives will do just as well in this recipe, so use whatever you prefer/can get your hands on. It's also great cold for lunch the next day.

Serves 4

Ingredients:

375g ready rolled puff pastry sheet
2 large red onions, sliced
2 tbsp balsamic vinegar
1 tbsp brown sugar
100g feta cheese, crumbled
100g olives, sliced in half
1 tsp dried basil
salt and pepper, to taste

Instructions:

Preheat oven to 200 degrees C / 400 degrees F / Gas Mark 6

1. Fry onions in oil for 5 minutes until beginning to soften. Add the balsamic vinegar and brown sugar, stir through and cook for another 10 minutes until the onions have caramelised and the liquid has reduced.

2. Roll out the puff pastry sheet onto a greased baking tray. Spread the onions on the pastry sheet, and sprinkle over the feta, olives and basil. Season with salt and pepper.

3. Bake in the oven for approximately 20 minutes, until the pastry is cooked.