Step 1

Preheat oven to 325 degrees. Line a 9-inch by 13-inch cake pan with parchment paper and coat with nonstick spray.

Step 2

In a large bowl, whisk the eggs and oil together until well blended. Whisk in the cake mix until smooth. Carefully fold in the mandarin oranges and their juice.

Step 3

Pour the batter into the prepared pan and bake 25 to 35 minutes (check at 25 minutes). Cool completely, at least 30 minutes.

Step 4

When the cake is cool, blend whipped topping and dry vanilla pudding mix in a large bowl (do not prepare the pudding mix into pudding). Carefully fold in pineapple and juice. Spread the frosting in a thick, even layer on the cake.

Step 5

Cover and refrigerate at least 30 minutes before serving. Garnish individual slices with maraschino cherries if desired. Refrigerate any leftovers.