Cook Butter cake mix according to box directions. Two layers. Cool layers over night. Cake filling; Mix 1 pkg. Philadelphia Cream cheese, 1 cup milk, put in 1 pkg vanilla instant pudding until smooth and thick. Mix in 1 can crushed pineapple. Put bottom layer on cake holder and frost with about 1/2 inch cake filling. Put top layer on and put another layer of cake filling on top. Frost with Cool whip! Delish!