I advise that you kill someone first before making this delicious dessert. Do not make while prey is alive unless you are into torture.
First step: Slowly remove their skin and organs with a knife. Preferably a butcher's knife that has just been sharped to it's finest
Second step: Drain their blood into a filtered watery solution and mix until thin
Third step: Buy an icing kit and instead of using food coloring, use the bloody mixture that you just made
Fourth step: Grind the skin and organs to a chunky mixture and add any type of cake mix (save the eyes)
Fifth step: Follow the directions on the box to make and bake the cake
Sixth step: Once baked, ice the cake and add their eyes as toppings. Let cool.
Yum people cake~! ENJOY~!