Three different alliums give this creamy tart a lovely range of savoury flavours, while the grainy mustard adds a note of sweetness. Like most savoury egg tarts, it is best eaten warm or at room temperature, rather than piping hot.


  • For the quick shortcrust pastry

  • 225g plain flour

  • Pinch of salt

  • 60g butter, cut into roughly 1cm dice

  • 60g lard, cut into roughly 1cm dice

  • 3–4 tbsp cold water

  • For the filling

  • 25g unsalted butter

  • 1 tbsp sunflower oil

  • 8 banana (eschalion) shallots, thinly sliced

  • 3 large onions, thinly sliced

  • 4 medium eggs

  • 2 medium egg yolks

  • 200ml double cream

  • 1½ tbsp wholegrain mustard

  • 1 tbsp chopped chives

  • Salt and white pepper


  • 1.

    To make the pastry, put the flour, salt, butter and lard into the bowl of a food processor. Pulse until the mixture looks like fine breadcrumbs. With the processor running, slowly add the water, processing just until the dough comes together in clumps. You may need a little less water or a touch more. Turn out the dough onto a lightly floured surface and knead briefly until smooth. Wrap in cling film and leave in the fridge to chill for around 30 minutes.

  • 2.

    Meanwhile, melt the butter and oil in a large frying pan over a medium-low heat. Add the shallots and onions and a pinch of salt. Cook slowly for at least 20 minutes, stirring from time to time, until the mixture is very soft and golden.

  • 3.

    Season with pepper and more salt if needed, then leave to cool.

  • 4.

    Heat your oven to 200°C/gas 6 and have ready a 23cm fluted loose-bottomed tart tin, 3.5cm deep.

  • 5.

    Roll out the pastry on a lightly floured surface to a 3mm thickness and use it to line the tart tin, leaving excess pastry hanging over the edge. Keep a little uncooked pastry back in case you need to patch any cracks later. Line the pastry with baking parchment or foil and then fill with baking beans, or uncooked rice or lentils.

  • 6.

    Bake blind for 15 minutes, then remove the parchment and baking beans and return the pastry to the oven for about 8 minutes or until it looks dry and faintly coloured.

  • 7.

    Use a small, sharp knife to trim away the excess pastry from the edge. Use a tiny bit of the reserved raw pastry to patch any cracks or holes if necessary.

  • 8.

    For the filling, whisk the eggs, egg yolks, cream, mustard and chives together. Season with salt and a pinch of white pepper. Add the cooled onion mixture and stir to combine.

  • 9.

    Pour the mixture into the pastry case and cook for 25–30 minutes, until the filling is just set and golden. Leave to cool in the tin for 5 minutes before removing, then serve warm or cold.

Nutritional information

Nutritional analysis per serving (4 servings)

  • Energy 913kj
  • Fat Total 61g
  • Saturated Fat 31g
  • Protein 18g
  • Carbohydrate 75g
  • Sugar 16g
  • Sodium 1031mg

Note: The information shown is Edamam's estimate based on available ingredients and preparation. It should not be considered a substitute for a professional nutritionist's advice.

Powered by Edamam

Metric Converter

Tell us what you think in the comments below


Sign Out

Click to Rate

Join the Conversation

Please note, LifeStyle cannot respond to all comments posted in our comments feed. If you have a comment or query you would like LifeStyle to respond to, please use our feedback form.

0 0 0 0 0
Average Rating
0 comments • 0 ratings