Melt the butter for 20 seconds in the microwave whit the micro pitcher set.
Add the biscuit crumbs and mix.
Place some parchment paper in the bottom of a Cold Cut Keeper Large.
Spread the biscuit crumb mixture on the bottom of the Cold Cut Keeper.
Press the mixture to the base.
Make 3 recipes of the sorbet and spread them on the top of the biscuit mixture
Couver and leave in the freezer for about 2 hours.
Spread the Nutella on the sorbet.
Chop the walnuts and spread them on top of the Nutella.
Return to the freezer for 15 minutes