Courgette, Blue Cheese, and Red Onion Tart

  • 375g ready-rolled puff pastry
  • 1 egg, beaten
  • 50g butter
  • 3 red onions, sliced
  • 2 tbsp balsamic vinegar
  • 1 courgette, cut into ribbons
  • 100g gorgonzola or similar
  • Preheat the oven to 200C. Roll the pastry out to an A4-sized rectangle, then slide onto a baking tray and brush with egg. Bake for 20 mins. Meanwhile, melt the butter in a frying pan and add the onions with a pinch of salt, cook for 10 mins until softened, then pour in the balsamic and cook for another 8 mins or until sticky and caramelised.
  • Spoon the red onion mixture all over the pastry, leaving a crust around the outside border. Top with the courgette ribbons and blobs of the gorgonzola. Pop back in the oven for 15 mins, until golden, flaky, and bubbling, then serve.
35 mins
4 serving