Tomato, caramelised onion and mascarpone tart

Tomato, caramelised onion and mascarpone tart
  • Serves icon Serves 6
  • Time icon Hands-on time 40 min, oven time 45-50 min

Puff pastry topped with caramelised onions, sweet tomatoes and creamy mascarpone makes this a vegetarian tart that everyone will want a slice of.

And if you like that, you simply have to try our tomato, thyme and ricotta tart. Once the case is baked, it only takes 10 minutes to finish off!

Nutrition: per serving

Calories
465kcals
Fat
35.7g (20g saturated)
Protein
6.2g
Carbohydrates
27.9g (11.5g sugars)
Fibre
4.1g
Salt
0.5g
Calories
465kcals
Fat
35.7g (20g saturated)
Protein
6.2g
Carbohydrates
27.9g (11.5g sugars)
Fibre
4.1g
Salt
0.5g

Ingredients

  • Extra-virgin olive oil for frying and drizzling
  • 2 red onions, thinly sliced
  • 1 tbsp brown sugar
  • 250g mascarpone
  • Finely grated zest and juice 1 lemon
  • 4-5 fresh rosemary sprigs, leaves picked and finely chopped
  • 4 spring onions, finely chopped
  • 1 garlic clove, crushed
  • 320g ready-rolled all-butter puff pastry sheet
  • 500g tomatoes (a mix of colours and sizes), halved or quartered
  • A few fresh thyme sprigs, leaves picked

Method

  1. Heat a large frying pan with a glug of oil over a medium heat. Add the red onions and fry for 10 minutes, stirring occasionally. Add the sugar and cook for a further 10 minutes until sticky and caramelised.
  2. In a medium mixing bowl, beat the mascarpone with the lemon juice and zest, rosemary, spring onions and garlic. Season. Heat the oven to 200°C/180°C fan/gas 6.
  3. Unroll the pastry onto a baking sheet. Spread with the mascarpone, leaving a 2-3cm border. Top with the red onions, then the tomatoes and a little thyme. Drizzle over a little oil, season, then bake for 25 minutes. Turn the oven to 170°C/150°C/gas 3½. Bake for 20-25 minutes until the tomatoes have shrivelled and the pastry is golden. Replace any burnt thyme leaves with fresh and serve warm.

delicious. tips

  1. Caramelise the onions up to 48 hours ahead. Keep in a sealed container in the fridge.

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