First, let the frozen custard get nice and hard in the freezer. If using homemade cookies let them cool completely. When ready to assemble, set the container of ice cream out for about 10 minutes to soften slightly.u003cbr/u003eu003cbr/u003eScoop a generous-sized sphere of custard, and place on the bottom side of one cookie. Top with the other cookie, pressing down slightly to sandwich the middle. I then like to wrap them individually or place all together in a large container, and pop back in the freezer for 30 minutes to an hour to firm up a bit.