Tiramisù Ice Cream Cake - Instructions
For the soaked ladyfingers: Stir coffee, five tablespoons rum, and espresso
powder in large bowl until espresso dissolves; set aside. Working with one cookie at a
time, quickly dunk ladyfingers in coffee mixture and transfer to wire rack set in
rimmed baking sheet; let sit for five minutes.
To assemble: Grease tube pan with vegetable oil spray and line with parchment
paper. Lightly coat parchment with oil spray. Line prepared pan with soaked
ladyfingers, packing gently to ensure that there are no spaces between cookies; freeze
until firm, about one hour. When cookies are firm, scoop ice cream into large bowl and
mash with wooden spoon until softened; fold in chocolate chips. Transfer softened ice
cream to cookie-lined pan, smooth top, and wrap with plastic wrap. Freeze until ice
cream is firm, at least four hours or up to four days.