01 -
Line an 20 cm springform pan with parchment paper and lightly grease with nonstick cooking spray. Mix shortbread crumbs and melted salted butter until combined. Press the mixture firmly into the base and halfway up the sides of the pan. Set aside.
02 -
Melt unsalted butter and brown sugar in a medium saucepan over low heat, stirring until sugar dissolves. Add sweetened condensed milk, increase heat to medium-low, and simmer gently while stirring continuously for 16 to 18 minutes until thickened to a golden caramel hue. Remove from heat.
03 -
Using a stand mixer fitted with a whisk attachment, whip heavy cream until almost forming stiff peaks, approximately 1.5 minutes. Gradually add confectioners' sugar and continue whipping until stiff peaks form.
04 -
Arrange half of the banana slices evenly over the crust. Pour warmed toffee sauce over the bananas. Layer the remaining banana slices on top.
05 -
Spread the whipped cream evenly over the assembled bananas and toffee. Refrigerate for at least 1 hour or overnight to set thoroughly.
06 -
Serve the chilled dessert garnished with additional shortbread crumbs or optional chocolate shavings as desired.