Old Fashioned Apple Pie Bars

Directions

1. 1
   Preheat oven to 400°F. Grease an 8x12 inch rimmed baking tray and line base and long sides with parchment paper, extending paper 2 inches over sides.
2. 2
   Bring apples, 3/4 cup sugar and 1/2 cup water to a boil, covered. Reduce heat and simmer for 10 mins, or until apples are just tender. Transfer to a large colander or strainer to drain and let cool to room temperature.
3. 3
   To make the pastry dough, sift flour and powdered sugar into a large bowl. Cut in butter. Add egg and 1/2 cup milk and mix until combined. Transfer to a lightly floured work surface. Roll 2/3 of dough out and use to line base and sides of pan, with 1/3 inch extending over sides. Spread cold apple mixture over pie shell and brush edges with a little extra milk.
4. 4
   Roll out remaining dough until large enough to generously cover filling. Place over filling and press edges together to seal. Trim excess dough around edges then brush top with a little milk and sprinkle with remaining sugar. Slash about 6 holes in the pie lid and bake for 45 mins. Let cool in pan for 10 mins then transfer to a wire rack to cool.
5. 5
   Meanwhile, to make the passionfruit icing, sift powdered sugar into a medium heatproof bowl. Stir in passionfruit pulp to make a thick paste. Place bowl over a saucepan of simmering water and stir icing until spreadable. Spread icing over pie then cut into squares to serve.