30ml (2 tbsp) virgin olive oil
1 medium onion, skinned and chopped
1 garlic clove, crushed
1 medium potato, peeled and sliced
675g (1.5 lb) ripe tomatoes, skinned and
chopped
15ml (1 tbsp) chopped fresh tarragon
300ml (1/2 pint) chicken stock
salt and freshly milled black pepper
grated rind and juice of 1/2 orange
pinch of sugar (optional) |