Cut the pastry into 12 equal rectangles and arrange on a baking sheet, then place another baking sheet on top. Place in a preheated oven, 200°C (400°F), Gas Mark 6, for 10 minutes until golden and crisp.
Sift half the icing sugar over the pastry puffs and cook under a preheated hot grill for 30 seconds until the sugar melts. Leave to cool.
Whisk the cream with the remaining icing sugar until soft peaks form. Arrange the pastry strips, whipped cream and strawberries on plates and serve immediately.