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.
How to make perfect butter cream frosting look like fondant. This tutorial skips an important step. I couldn't get this to wk w/o putting the cake n the freezer after smoothing with a hot spatula. Then the paper towel worked fine.