Step 1: Look at the directions on the cake mix, Step 2: Add one more egg (or add 2 if you want it to be very rich), Step 3: Use melted butter instead of oil and double the amount, Step 4: Instead of water, use milk. Step 5: Mix well and bake for the time recommended on the box.
LOVE this since we already buy our kids Christmas Eve pajamas every year anyways!! The Pajama Elves Story - a Christmas Eve Tradition where elves deliver magical pajamas to good girls and boys that help them sleep soundly on Christmas Eve. Oh I would have done this for my kids for sure. Love this.