01 -
Preheat the oven to 204°C. Line a baking sheet with a silicone liner or parchment paper.
02 -
On a lightly floured surface, lay one sheet of puff pastry and cut into six equal rectangles. In a small bowl, whisk together the berry jam and cornstarch.
03 -
Spoon approximately 22 ml of the jam mixture onto three rectangles, leaving a 1.3 cm rim around edges. Whisk the egg with 15 ml water and brush this mixture lightly on the exposed rims to assist sealing.
04 -
Place the remaining three rectangles of puff pastry atop the jam-coated ones. Press the edges firmly to seal. Transfer assembled pastries to the refrigerator while repeating the process with the second sheet.
05 -
Lightly brush the tops of the strudels with the egg wash. Bake for 20 minutes or until golden brown.
06 -
Meanwhile, whisk together powdered sugar, half and half, vanilla, and almond extracts until smooth. Add additional half and half if necessary to thin. Once strudels have cooled until warm, drizzle the icing over the top using a resealable bag with a cut corner.