01 -
Line a 9-inch springform pan with plastic wrap and set aside. Preheat the oven to 350°F. Line a 10x15-inch baking sheet with parchment paper and set aside.
02 -
Combine crushed chocolate sandwich cookies and melted butter in a small bowl. Spread mixture evenly over the prepared baking sheet. Bake for 7 to 8 minutes, then let cool completely.
03 -
Remove chocolate ice cream from freezer and allow to soften for 15 to 20 minutes for easier spreading.
04 -
Spread softened chocolate ice cream evenly into the bottom of the springform pan. Freeze for 30 minutes to 1 hour to firm.
05 -
Warm hot fudge topping in the microwave for 20 to 25 seconds until soft but not hot.
06 -
Spread softened hot fudge evenly over the chocolate ice cream layer using a spatula.
07 -
Sprinkle cooled baked cookie crumbs evenly over hot fudge. Freeze the pan for 1 hour.
08 -
Remove vanilla ice cream from freezer 15 to 20 minutes before spreading to soften slightly.
09 -
Spread softened vanilla ice cream evenly over the cookie crumb layer. Freeze for 4 to 6 hours or overnight.
10 -
Place metal mixing bowl in freezer for 30 minutes before whipping cream.
11 -
Combine cold heavy cream, powdered sugar, and vanilla flavoring in chilled bowl. Beat on medium speed until sugar incorporates, then high until stiff peaks form, about 3 to 4 minutes.
12 -
Reserve 1 cup of whipped cream in a piping bag fitted with a large star tip for decoration.
13 -
Remove ice cream cake from freezer and release from springform pan. Remove plastic wrap and transfer cake to serving platter. Quickly frost sides and top with remaining whipped cream using spatula.
14 -
Pipe whipped cream around the top edge of the cake using even pressure. Sprinkle colorful sprinkles over the top. Return to freezer until serving.