Nutella Ice Cream Torte

Preparation Spoon 3 tablespoons Nutella into small pastry bag with small plain tip. Set aside to use for topping. Wrap outside of 9-inch-diameter springform pan with 2 3/4-inch-high sides with foil. Spread nut or chocolate chip ice cream evenly in bottom of pan. Using small spoon, drop half of remaining Nutella by teaspoonfuls over ice cream, spacing drops evenly (do not spread). Freeze until firm, about 30 minutes. Spread strawberry ice cream evenly over. Drop remaining Nutella by teaspoonfuls over ice cream, spacing drops evenly (do not spread). Freeze until firm, about 30 minutes. Spread vanilla ice cream evenly over. Using spatula, smooth top. Pipe reserved Nutella decoratively over top. Freeze just until Nutella is firm, about 30 minutes. Wrap torte in plastic and freeze at least 6 hours or overnight. (Can be prepared 1 week ahead. Keep frozen.) Let torte stand briefly at room temperature to soften slightly. Remove foil and plastic from pan. Using knife, cut around sides of pan; release sides. Press hazelnuts into sides of torte, if desired.

Preparation Spoon 3 tablespoons Nutella into small pastry bag with small plain tip. Set aside to use for topping. Wrap outside of 9-inch-diameter springform pan with 2 3/4-inch-high sides with foil. Spread nut or chocolate chip ice cream evenly in bottom of pan. Using small spoon, drop half of remaining Nutella by teaspoonfuls over ice cream, spacing drops evenly (do not spread). Freeze until firm, about 30 minutes. Spread strawberry ice cream evenly over. Drop remaining Nutella by teaspoonfuls over ice cream, spacing drops evenly (do not spread). Freeze until firm, about 30 minutes. Spread vanilla ice cream evenly over. Using spatula, smooth top. Pipe reserved Nutella decoratively over top. Freeze just until Nutella is firm, about 30 minutes. Wrap torte in plastic and freeze at least 6 hours or overnight. (Can be prepared 1 week ahead. Keep frozen.) Let torte stand briefly at room temperature to soften slightly. Remove foil and plastic from pan. Using knife, cut around sides of pan; release sides. Press hazelnuts into sides of torte, if desired.