Chocolate Toblerone Cake

I sort of made this recipe up combining a few different recipes I found online.
Any candy bar could be substituted of course, and really there are lots of fun variations you could have with the whole recipe (butterscotch instead of caramel, add chocolate mini morsels, drizzle caramel frosting on top, etc...).

Ingredients

Cake
1 box devils food cake
1 4-serving box instant chocolate pudding
4 eggs
3/4 cup milk
1/2 cup water
1/2 cup sour cream
1 cup chopped toblerone pieces

Topping
~1/2 cup sweetened condensed milk
~1/3 cup caramel ice cream topping
~3/4 cup chopped toblerone pieces


Preheat oven to 350.
Grease and flour desired pan. (I used a springform pan to look prettier but if you use this, don't use all of the batter, as it will be too thick! I used all but about a 1/3 to a 1/2 cup of it and made a mini-cake w/ the rest)
Blend cake ingredients (except chocolate pieces) with electric mixer for about two minutes. Fold in 1 cup toblerone pieces.
Pour into pan, bake as appropriate for your pan (i.e, ~35+ min for springpan, less for larger pans, etc), until toothpick comes out almost clean.

While warm, poke holes in cake and spread condensed milk over, allowing to seep in.
Follow with caramel. While still warm, sprinkle remaining candy pieces over for garnish.