Deep Dark Chocolate Moist Cake

Steve and I went on a date (yes, that's my husband) the other night to Red Lobster. They have the deal right now where you get 2 Entrees, 2 salads, and either a dessert or appetizer. Of course, we chose the dessert. It's called Chocoalte Wave and oh my gosh it was good. It was so moist and gooey and rich and delicious. So ever since I've been craving it. I found this recipe online. And although I don't think it comes close to the Chocolate Wave, it's still pretty good.

I got this recipe off of Recipe Zaar.

Ingredients
1 (515 g) box devil's food cake mix
1 1/4 cups water
1/3 cup canola oil
3 large eggs
2 tablespoons cocoa powder
2 tablespoons dark brown sugar
2 tablespoons dark molasses

Directions:
Place the two layer size packaged devils food cake mix in a large mixer bowl, and sift out lumps.
Add all other ingredients into bowl, and beat well, until combined and thick.
Bake in greased cake pans at 350 degrees preheated oven.
Bake for 25 minutes or until toothpick or tester comes away clean.
Cool ten minutes, invert onto cooling rack.
Fill and frost with your favourite frosting.

I also cut each layer in half, so there were 4 layers of cake and did frosting inbetween each layer. And this time I was going to try and make my own frosting, but I didn't have some of the stuff on hand so I used canned. 2 Cans actually. I also used crushed up oreos on the side and a little on the top.
Why is it that when you see people put stuff on the sides of cakes does it look so easy? I saw a guy on Food Network last week putting coconut on the sides of his cake and he did the whole cake in about 20 seconds and it looked amazing. There were oreo crumbs all over my kitchen! If you have any good tips, I would love to hear.