1 1/3cupsall-purpose flour 6 tbsp chilled buttercut into cubes about 2 tbsp cold water
2/3cupgranulated sugarplus extra for sprinkling
Filling
1/3cupcornstarch
1 1/2lb750g rhubarb, cut into 1/2 in (1cm) slices1 cinnamon stick, halved
12oz375g strawberries, hulled and halved
Instructions
For the shortcrust pastry:
Place the flour into a spacious bowl.
Add the butter, then use your fingertips to blend them until the mixture takes on the texture of fine bread crumbs.
Gradually add enough water to the mixture, allowing it to come together into a soft dough. Ensure that it's not too sticky.
Wrap this dough in plastic wrap, and allow it to rest in the refrigerator for approximately 30 minutes.
For the filling:
Combine the sugar and cornstarch.
Mix this with the rhubarb, cinnamon, and strawberries.
Allow the fruit to soak in this mixture for 15 to 20 minutes.
To assemble the rhubarb tart:
Preheat your oven to 425°F (225°C).
Split it into two halves.
Roll out one of the halves on a lightly floured surface to form a thin round shape. This will line the bottom and sides of your pie dish.
Transfer the soaked fruit into the pie crust, removing the cinnamon.
Roll out the second half of the dough to match the size of the first round. Cut a strip measuring 1/2 inch (1cm) from around the edge of this dough.
Proceed to cut the remaining dough into 1/2 inch (1cm) strips. These will be used to create a lattice pattern on top of the pie.
Apply a light brush of water to the ends of the lattice strips. Arrange them in a lattice pattern over the pie's surface. Attach the longer strip around the rim of the pie.
Sprinkle 1 to 2 tablespoons of sugar over the lattice top.
Bake the pie for 10 minutes initially. Then, reduce the oven temperature to 350°F (180°C) and continue baking for an additional 30 to 40 minutes. The goal is for the fruit to be tender and the crust to attain a golden hue.
Serve the rhubarb pie/tart either warm or cold, according to your preference.