Believe it or not, ice cream sandwiches are a typical breakfast food in Sicily. Instead of cookies, a brioche bun is the vehicle for creamy gelato in the flavor of your choice. Donatella Arpaia finishes these pistachio gelato sandwiches (called Brioche con Gelato in Italian) with a sprinkle of chopped nuts and a pinch of powdered sugar.
Split and lightly toast the brioche. Place 3 small scoops of pistachio ice cream on brioche and sprinkle with chopped pistachios. Cover with other half of brioche. Dust sandwich with powdered sugar.