Ingredients
Method
- Preheat oven to 200°C (392°F). Heat a metal tray.
- Mix flours, sugar, and salt. Rub in butter until crumbly.
- Add ice water gradually until dough forms. Chill 30 min.
- Toss rhubarb with sugar, salt, cornstarch, zest, juice, vanilla, and cardamom. Rest 10–15 min.
- Roll dough to 3mm thick rectangle (11×13 inches). Transfer to parchment.
- Arrange rhubarb in chevron rows, leaving 4cm border.
- Fold edges over, brush with egg wash, sprinkle sugar.
- Drizzle leftover juice over fruit. Chill 30 min or freeze 10 min.
- Lower oven to 190°C (375°F). Transfer parchment onto hot tray.
- Bake 40–50 min until crust is golden and filling bubbles.
- Cool at least 30 min before slicing to set filling.
Nutrition
Notes
Chill the dough thoroughly for best results and ensure the tart cools before slicing.
