1 box Duncan Hines yellow butter cake mix
1 can mandarin oranges with juice
1/2 c. Crisco oil
4 eggs
ICING:
1 lg. can crushed pineapple with juice
1 pkg. instant vanilla pudding mix
1 (9 oz.) carton Cool Whip
Sift cake mix into large bowl. Add mandarin oranges with juice and Crisco oil. Add eggs one at a time, beating after each one until well blended. Bake in 350 degree oven. For 3 (9 inch) layers 25 to 30 minutes. For 9 x 13 inch pan 45 to 55 minutes.
For icing: Mix crushed pineapple with juice and instant vanilla pudding mix, stir with spoon until thick. Fold in Cool Whip. Spread on cooled cake.