Cookies & Ice Cream Cheesecake

1 pkg chocolate chip cookies, divided
2 tbsp butter, melted
2 pkg (8 oz each) cream cheese, softened
1/2 cup sugar
2 tsp vanilla
1-1/2 qt French vanilla ice cream, slightly softened

Finely crush 20 cookies to form crumbs. Mix with the melted butter, and press into the bottom of a 13x9 inch pan.
Beat the cream cheese, sugar, and vanilla in the bowl of a stand mixer until combined.
Stir in the ice cream, mixing completely.
Chop 16 cookies and stir into the ice cream mixture.
Gently spread over the crust, and freeze for at least 4 hours.
Top with the remaining cookies.