These cool summer sandwiches are dipped in semi-sweet chocolate.
1. Arrange 4 cookies flat side up in a single layer. Spread with ice cream. Top with berries, if desired, and another cookie. Wrap in plastic and freeze for at least 1 hour.
2. Combine chips and oil in a small bowl. Microwave on medium in 30-second increments until chocolate is melted. Let cool slightly, then dip half of ice cream sandwich into chocolate. Wrap cooled sandwich in plastic and freeze for 1 hour.