| 1 | Heat oven to 375°F. |
| 2 | Line 15-?x lo-?x 1-inch jelly-roll pan with foil; generously grease foil. |
| 3 | In large bowl, beat egg whites on high speed of electric mixer until soft peaks form; gradually add l/2 cup sugar, beating until stiff peaks form. |
| 4 | In small bowl, beat egg yolks and vanilla on medium speed 3 minutes. |
| 5 | Gradually add remaining 1/3 cup sugar; continue beating 2 additional minutes. |
| 6 | Stir together flour, cocoa, baking powder, baking soda and salt; on low speed, add to egg yolk mixture alternately with water, beating just until batter is smooth. |
| 7 | Gradually fold chocolate mixture into beaten egg whites with rubber spatula until well blended. |
| 8 | Spread batter evenly into prepared pan. |
| 9 | Bake 12 to 15 minutes or until top springs back when touched lightly. |
| 10 | Immediately loosen cake from edges of pan; invert on clean towel sprinkled with powdered sugar. |
| 11 | Carefully peel off foil. |
| 12 | Immediately roll cake in towel starting from narrow end; place on wire rack to cool completely . |
| 13 | Prepare holiday mint filling. |
| 14 | Carefully unroll cake; remove towel. |
| 15 | Spread cake with filling; reroll cake. |
| 16 | Drizzle with chocolate drizzle and white drizzle. |
| 17 | Refrigerate until just before serving. |
| 18 | Cover; refrigerate leftover cake. |
| 19 | Lo to 12 servings. |
| 20 | Holiday filling: in small mixer bowl, beat 1 cup (?pt). |
| 21 | Cold whipping cream, 2 tablespoons powdered sugar and 7 to 8 drops green food color, if desired, until stiff. |
| 22 | Fold in one 7 oz. coarsely chopped hershey"s cookies n" mint chocolate bar. |
| 23 | (do not use food processor to chop). |
| 24 | Chocolate drizzle: in small microwave-safe bowl, place ?cup hershey"s semi-sweet chocolate chips and 1-?teaspoons shortening. |
| 25 | Microwave at high (100%) 30 seconds; stir. |
| 26 | If necessary, microwave at high additional 20 seconds or just until chocolate is melted and mixture is smooth when stirred. |
| 27 | White drizzle: in small microwave-safe bowl, place ?cup hershey"s premier white chips and 1 teaspoon shortening. |
| 28 | Microwave at high (100%) 30 seconds; stir. |
| 29 | If necessary, microwave at high additional 10 seconds or just until chips are melted and mixture is smooth when stirred. |
| 30 | [ |