"Making" a cake

You are right! I m not baking a cake, but making one! How?

A few weeks ago, i was attracted by this :I thought I can also make the same for my dad's coming birthday, so i buy this :Last Sunday, i finally opened the cup with ambitions to start my art work, but i found that inside is like this: together with such a "clear" instruction sheet....oh well, which part should i start then??!