CHRISTMAS YULE LOG (công thức này ngon và thành công )

5 eggs size large
1/2 c. powdered sugar
3 tbsp. cocoa
1 c. milk
1/3 c. flour or cake flour 
1 c. butter 
1/2 c. sugar
1/2 tsp. vanilla
2 tbsp. instant coffee
3 tbsp. cocoa in icing

Beat egg yolks until thick and pale. Add sugar and cocoa; beat well. Fold in stiffly beaten egg whites. Spread in buttered floured rectangle pan. Bake at 350 degrees for 12 minutes. Quickly loosen and turn onto water sprinkled towel and roll up until cool. Cook milk and flour in saucepan to make paste. Let cool. Whip butter and sugar until light and fluffy. Add paste, vanilla and coffee; whip.Unroll cake and spread with 1/2 of mocha filling. Roll up again. Add 3 tablespoons cocoa to remaining filling and ice outside of cake. Decorate with icing and cherries.