5. Pick and choose your cookie flavour at Moustache - one of the earliest places to adopt the trend.
6. Christchurch's The Donut Boutique opens a new branch in August, with the promise of donut and cookie ice cream sandwiches ... worth a visit.
7. Orleans' cookie sandwich comes with peanut butter semifreddo, raspberry jam and cereal milk.
8. The double-decker icecream sandwich at The Dairy, Ponsonby Central, is for true fans.
9. Chim Choo Ree in Hamilton sells a gingerbread sandwich with strawberry buttermilk and miso caramel.
10. Try a chocolate digestive sandwich from Cheltenham Dairy - read more about these in Wednesday's Viva.