Chocolate Peppermint Ice Cream Cake

Ingredients

Cake:

1/2 cup cake flour (not self-rising)
1/3 cup unsweetened cocoa powder
3/4 teaspoon baking powder
1/4 teaspoon salt
5 large eggs, at room temperature
3/4 cup granulated sugar
1 1/2 teaspoon vanilla extract
1 1/2 teaspoon peppermint extract

Filling:
4lt peppermint crisp ice cream, softened

Glaze:
1/2 cup heavy cream
1 cup bittersweet or semisweet chocolate, chopped
2 tablespoon dark corn syrup
1 1/2 teaspoon vanilla extract
1 1/2 teaspoon peppermint extract

Garnish:
Dark or white chocolate curls or shavings
Confectioners' sugar
Directions

Cake: Heat oven to 400 degrees F. Line a 20cm x 30cm x 2cm baking pan with non-stick foil or wax paper. In a small bowl, combine cake flour, cocoa powder, baking powder, and salt.
Separate egg whites and yolks into 2 large bowls. Beat whites on medium-high speed until foamy. Gradually beat in 1/2-cup of the sugar. Continue to beat on high speed just until stiff (but not dry) peaks form.
Using same beaters, beat yolks with the remaining 1/4-cup sugar and extracts until thickened, about 3 minutes. On low speed, beat in flour mixture until blended. Stir in 1/4 of beaten egg whites into mixture. Fold in remaining whites. Spread in prepared pan; smooth top. Bake 12 minutes or until top springs back when gently pressed. Let cool 2 minutes on a wire rack.
Dust a clean towel with confectioners' sugar; invert cake onto towel. Remove pan; carefully peel off foil. Starting from the short end, roll up cake in towel; place seam side down on wire rack; cool completely.
Filling: Unroll cake and spread evenly with ice cream. Roll up cake. Wrap tightly in nonstick foil and freeze, seam side down, overnight until firm.
Glaze: In a small saucepan, heat cream, chocolate, and corn syrup over low heat until chocolate is melted and glaze is shiny and smooth, 1 to 2 minutes. Stir in extracts; cool to room temperature.
Unwrap cake; trim ends. Place cake on a wire rack over waxed paper. Pour glaze along top of cake roll, spreading with a spatula to cover sides. Garnish top of cake with chocolate curls or shavings. Freeze cake