Pour the sweetened condensed milk into a large bowl. Smash the cookies until you have ¼ cup of cookie crumbs and 2 cups of cookie chunks.

In another bowl, whip the heavy cream until it holds stiff peaks (about 3 minutes). Mix a scoop of the whipped cream into the condensed milk and stir until combined.

Pour the remaining whipped cream and the cookie crumbs into the condensed milk mixture and fold the mixture until combined.

Transfer half of the mixture into a freezer container. Sprinkle half of the cookie chunks on top.

Repeat with the remaining ice cream mixture and cookie chunks, pouring it on top of the first half. Drag a knife through the entire mixture to spread out the cookie chunks.

Press a piece of wax paper against the surface and freeze for at least six hours before eating.