Ice Cream Cake Roll

Directions

1. 1
   Let eggs stand at room temperature for 30 minutes. Line a greased 15x10x1-in. baking pan with waxed paper; grease and flour paper; set aside.
2. 2
   In a large bowl, beat egg yolks on high for 3 minutes or until lemon-colored. Gradually add sugar and vanilla, beating until thick and pale yellow. Combine the flour, cocoa and baking powder; gradually add to egg yolk mixture Beat on low until well mixed (mixture will be thick).
3. 3
   In another large bowl and with clean beaters, beat egg whites and salt on high speed until soft peaks form. Fold a fourth of egg whites into the batter, then fold in remaining whites.
4. 4
   Spread batter evenly in prepared pan. Bake at 350° for 15 minutes or until cake springs back when lightly touched. Turn cake onto a kitchen towel dusted with confectioners' sugar. Gently peel off waxed paper. Roll up cake in the towel jelly-roll style, starting with a short side. Cool completely on a wire rack.
5. 5
   Unroll cake; spread with ice cream to within 1 in. of edges. Roll up again. Cover with plastic wrap and freeze until serving.
6. 6
   In a small heavy saucepan, melt chocolate and butter over low heat, stirring until smooth. Gradually add warm milk and sugar; stir constantly for 5 minutes or until completely dissolved. Serve with cake.