German Chocolate Cool Bars

Combine wafer crumbs with melted butter and press firmly into a square pan.

Melt most of the sweet chocolate with milk over low heat, stirring until smooth.

Whisk in cream cheese until the chocolate mixture is silky.

Cool briefly, then fold in whipped topping and grated chocolate.

Spread the filling over the crust and top with more whipped topping.

Freeze until firm, then cut into chilled bars and garnish with chocolate shavings.