This cake makes about 16 servings. But you can easily make this ice cream cake much smaller. (or bigger!) I had three layers of ice cream sandwiches, six in each row for a total of 18 ice cream sandwiches. But you could use 15 ice cream sandwiches (5 in a row). Or 12 ice cream sandwiches (4 in a row). It's one of the most flexible recipes ever.