Here’s my version of this:

1 German Chocolate Cake mix
2 Eggs
1/3 c oil
1 1/4 cup water
Topping
1 bag Toffee chips
8 oz Caramel sauce
8 oz Fudge sauce
2 Snickers bars sliced
16 oz whipped cream

Beat cake mix with snickers pieces, eggs, oil, water. Pour into greased pan, Dollop fudge sauce in a even pattern across dough, sprinkle in Toffee chips. With a butter knife, swirl the fudge and chips into the dough without mixing TOO much (should appear swirled). Bake According to directions.

When done, take out of the oven. Poke the butter knife in about half way and make small slits in a random pattern across cake. Drizzle caramel sauce over cake allowing it to run into the slits. Cool and add Whipped cream as topping!

I also have made this as this variation:

When cooled and taken out of the pan, layer in ice cream along the bottom of pan and sprinkle with crushed oreo’s. Place cake over ice cream, make random slits on top, pour over caramel sauce, top with whipped cream and put back in freezer. REALLY rich!