"Cookie crust" refers to a crunchy or crumbly outer layer made from crushed cookies, often used as a base or crust in desserts like pies or cheesecakes. Full definition
Chocolate custard set in a chocolate cookie crust with plenty of whipped cream on top? (epicurious.com)
Change up your classic pumpkin pie by baking it in a pan with a sugar cookie crust resulting in these delicious sugar cookie pumpkin pie bars! (thespiffycookie.com)
To make the crust, I followed the same procedure that I used when making the chocolate chip cookie crust for my gluten - free chocolate chip peanut butter pie. (mygluten-freekitchen.com)