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There’s nothing better than a delicious autumn tart recipe, for the cooler nights and days. This caramelised onion, sweet potato and feta tart is not only incredibly tasty, but easy to prepare and great to make ahead of time and reheat.


400g sweet potato, peeled and cut into 1cm pieces

1 1/2 tablespoons olive oil

2 sheets frozen, puff pastry, slightly thawed

1 tablespoon brown sugar

2 brown onions, finely sliced

1 tablespoon balsamic vinegar

1/2 cup milk

1 egg

50g feta, crumbled

2 tablespoons thyme leaves



  1. Preheat oven to 200 C.
  2. Toss the sweet potato with 2 teaspoons of the olive oil and spread out on a lined baking tray. Bake for 20 minutes or until golden on the edges.
  3. Lightly grease a 15 x 35cm rectangular tin and lay pastry sheets, slightly overlapping, into the base of the tin. Trim any excess sheet hanging over the sides.
  4. Prick the pastry base with a fork, cover with baking paper and fill with pie weights. Bake for 15 minutes.
  5. Heat 2 teaspoons of olive oil in a saucepan over medium heat. Add the onion and cook for 15 minutes. Cook until the onions are caramelised.
  6. Add the sugar and vinegar to the pan and cook for a further 3 minutes, or until all liquid has evaporated.
  7. Spread the onion mixture over the pastry base and top with sweet potato.
  8. Whisk the egg and milk together and pour over the top.
  9. Finish with feta and thyme.
  10. Bake for 10 minutes or until pastry is golden and milk mixture is set.



If you don’t have pie weights, you can use rice instead!


If you enjoyed this caramelised onion, sweet potato and feta tart and would like more delicious recipes, head to our Seasons blog.

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