Preparation:

1: Prepare the Cookie Crust

1. In a medium bowl, mix the chocolate cookie crumbs with melted butter until the crumbs are evenly coated.
2. Press the mixture firmly into the bottom of a 9-inch springform pan to form an even crust.
3. Freeze the crust for 15 minutes to set.

2: Add the First Ice Cream Layer

1. Spread the softened vanilla ice cream evenly over the chilled crust.
2. Freeze for 20-30 minutes, or until the layer is firm.

3: Add the Second Ice Cream Layer

1. Spread the softened mint chocolate chip or white chocolate ice cream over the vanilla layer. Smooth the top with a spatula.
2. Freeze for at least 30 minutes, or until the layers are completely set.

4: Add the Whipped Topping

1. Spread the whipped topping evenly over the top ice cream layer, creating a smooth, fluffy surface.
2. Return the cake to the freezer and freeze for at least 2 hours, or overnight, to ensure it is fully set.

5: Decorate the Cake

1. Just before serving, sprinkle the whipped topping with white sugar sprinkles, edible glitter, and candy snowflakes or silver dragees.
2. Add optional garnishes like chocolate shavings, peppermint candies, or mini marshmallows for extra flair.

6: Serve and Enjoy

1. Carefully remove the springform pan and transfer the cake to a serving platter.
2. Slice with a hot knife (run the knife under hot water and dry it before slicing) and serve immediately.