Ice Cream Cake With Circus Animal Crust {Lightened Up}

For The Crust:

1. Lightly spray a 9-inch springform pan with cooking spray and set aside.
2. In a large food processor, crush the circus animal cookies until they make fine crumbs.
3. In a large bowl, mix together the circus animal crumbs and the melted butter and mix until the crumbs are well coated.
4. Press the crumbs into the bottom of the springform pan, making sure you pack them in nice and tight. Freeze for 24 hours.

Prepare The Layers:

1. Thaw 3 1/2 cups of the ice cream until very soft, and spread over the frozen crust. Pop it back into the freezer until it's firm.

Circus Animal Layer:

1. Process an additional 1 cup of circus animal cookies into crumbs using your food processor.
2. In a large, microwave-safe bowl, melt the chocolate at 20-second intervals on a half power setting, stirring between each interval, until smooth.
3. Quickly stir in the heavy whipping cream, oil, and cookie crumbs. The mixture will turn very thick, almost like a ganache.
4. Pour over the frozen ice cream layer, spreading quickly to avoid melting the underlying ice cream. Place back in freezer until firm and set.

Final Layer:

1. In a large bowl, thaw the rest of the ice cream until soft, then mix with the Cool Whip.
2. Pour over the white chocolate layer, making sure the top is nice and smooth. Refrigerate until completely firm and set, at least 4 hours or overnight.
3. Decorate with more Cool Whip and sprinkles, if desired.