Box Cake Mixes Secret
The secret to fantastic box cakes is to use real butter instead of oil, use milk instead of water, and add one extra egg.

Cake Bounce Back Test
Gently press down on the top of the cake and if it bounces back all perfect then it is ready. If it dented then it needs more time.

Cake Tooth Pick Method
Stab the cake with a toothpick and pull it out. If the toothpick is clean then it the cake is ready.