Shortcut Tiramisu Sheet Cake

Steps

• 1

  Heat oven to 350°F. Spray bottom and sides of 15x10x1-inch pan with baking spray with flour.
• 2

  In large bowl, beat Cake ingredients with electric mixer on low speed 30 seconds, then on medium speed 2 minutes, scraping bowl occasionally. Pour into pan.
• 3

  Bake 17 to 20 minutes or until toothpick inserted in center comes out clean. Cool 15 minutes.
• 4

  In small bowl, stir Coffee Mixture ingredients until sugar is dissolved. Pierce top of cake every 1/2 inch with fork. Pour coffee mixture evenly over cake. Cool completely, about 1 hour.
• 5

  In large bowl, beat mascarpone cheese and 1/2 cup powdered sugar with electric mixer on low speed until mixed. Beat on medium speed about 1 minute or until smooth. Gradually beat in whipping cream, beating on medium speed 1 to 2 minutes or until stiff peaks form. Beat in 3 tablespoons coffee liqueur. Spread mixture evenly over top of cooled cake. Chill cake 1 hour. Sprinkle with cocoa just before serving.