01 - Line a 9-inch springform pan with parchment paper to prevent sticking and ensure easy removal.
02 - Combine crushed cookies, melted butter, and granulated sugar in a medium bowl. Mix until evenly moistened and all crumbs are coated.
03 - Press half of the crumble mixture firmly into the bottom of the prepared pan to form an even crust. Place in freezer for 10 minutes to set.
04 - In a separate bowl, combine chopped strawberries and strawberry jam. Stir thoroughly to coat all strawberries evenly.
05 - Spread half of the softened vanilla ice cream over the chilled crust, using a spatula to create an even layer.
06 - Spoon the strawberry mixture evenly over the ice cream layer, distributing it across the entire surface.
07 - Top with the remaining ice cream, smoothing the top with a spatula to create a flat, even surface.
08 - Sprinkle the remaining crumble evenly over the top and gently press to adhere to the ice cream layer.
09 - Cover tightly with plastic wrap and freeze for at least 4 hours, or until completely firm throughout.
10 - Whip the heavy cream with powdered sugar and vanilla extract using an electric mixer until stiff peaks form.
11 - Release the cake from the springform pan, top with whipped cream, and garnish with extra strawberries if desired. Slice immediately and serve.