To the bowl of your food processor, fitted with the blade attachment, roughly break up the cookies and toss them in. Secure the lid and process into a very fine crumb.

To the crumbs, add the softened butter, condensed milk, evaporated milk and vanilla. Process until the mixture resembles peanut butter.

Use a rubber spatula to scrape the cookie butter into a glass jar and secure a tight fitting lid. Store in the fridge