Rhubarb and raspberry crostata

AT A GLANCE

  • Serves 10 people

This version of crostata di marmellata, a sweet shortcrust pastry case filled with jam, features a homemade rhubarb compote that's been spiked with orange, lemon and ginger to give it a less cloying texture. Serve with mascarpone or thick cream.

  • 500 gm rhubarb (about 1 bunch), coarsely chopped
  • 250 gm raw caster sugar
  • Thinly peeled rind and juice of 1 orange and ½ lemon
  • 2 tsp finely grated ginger
  • Scraped seeds of 1 vanilla bean
  • 100 gm frozen raspberries, defrosted
  • For brushing: eggwash
  • 2 tbsp demerara sugar, for dusting
  •  
  • Pasta frolla
  • 220 gm plain flour
  • 100 gm cold butter, coarsely chopped
  • 60 gm pure icing sugar, sieved
  • Scraped seeds of 1 vanilla bean
  • 1 egg plus 1 egg yolk, lightly beaten
01   For pasta frolla, process flour, butter, icing sugar, vanilla seeds and a pinch of salt in a food processor until fine crumbs form. Add egg mixture, process until mixture just comes together, turn onto a lightly floured surface, knead lightly until smooth. Wrap in plastic wrap, refrigerate to rest (1-2 hours).
02   Meanwhile, place rhubarb in a colander, rinse under cold running water, then combine in a large saucepan with caster sugar, rinds, juices, ginger and vanilla seeds. Stir over medium-high heat until sugar dissolves, then bring to the boil and stir occasionally until very thick and jammy (10-15 minutes), add raspberries and set aside to cool completely.
03   Preheat oven to 180C. Roll out two-thirds of the pasta frolla on a lightly floured surface into a 3mm-thick rectangle and line a 13cm x 36cm rectangular tart tin, trim edges and spoon in cooled rhubarb mixture. Roll out remaining pasta frolla on a lightly floured surface to 3mm thick, then cut into 15mm-wide strips. Arrange strips in a lattice over jam, press pastry edges to seal and trim excess. Brush pastry with eggwash, dust with demerara sugar and bake until pastry is crisp and golden (40-45 minutes). Cool in tin before serving. Crostata is best eaten on day of making.
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