Bake for 10 minutes. Remove from oven, let set on tray for 5 minutes, then carefully transfer to a cooling rack to cool. Once cooled, pop cookies in the freezer to harden so they're easier to work with.
Once soft, use an ice cream scoop to scoop out 8 large balls of ice cream onto squares of plastic wrap. Fold the plastic wrap around the balls and squash them into thick discs. Twist off tops to cover and place back in the freezer to harden - about 30 minutes.
Once frozen, remove chocolate cakies and the ice cream discs from the freezer and carefully plop the ice cream on the top of one cakey (face down) and then top it with another cakey (face up). (SAVE the plastic wrap).