- 1 packet ready rolled puff pastry
- 100g Grana Padano cheese or parmesan, grated
- 1 tin of anchovies or half a jar
- 3 onions
Finely slice the onions and cook them in a pan with a splash of oil on a very, very low heat for around an hour until they are a deep golden colour.
Pre-heat your oven to 220°C.
Score a line around the edge of the pastry about one centimetre in. Spread the onions over the centre of the tart evenly, then scatter the cheese over and place the anchovies on top.
Put the tart into the pre-heated oven and cook for around 15-20 mins until puffed up and golden.
Serve with a green or tomato salad.