Sweets can be part of a balanced diet but remember to keep tabs on portions.
How to Add Milk Mixture Without a Mess
Pour milk mixture into clean plastic bottle with squirt tip. Insert tip of bottle into holes in cake before squeezing milk mixture into holes.
Prepare cake batter and bake in 13x9-inch pan as directed on package. Cool completely. Do not remove cake from pan. Pierce cake as directed; pour milk mixture over cake. Refrigerate 1 hour. Frost with COOL WHIP, then sprinkle with reserved drink mix.