Chocolate rocky road crock pot cake

This was super yummy! I found this on Pinterest as I was looking for new recipes for my crock pot! I was able to make this in place of a birthday cake for my papaws birthday and it was a hit! Here was the recipe:
1 box of German chocolate cake mix ( you can use devils food)
3 large eggs
1 cup of sour cream
1 tsp of vanilla
1 box instant chocolate pudding
3 1/4 cups of milk
Semi sweet chocolate morsels
1 bag mini marshmallows
1/3 cup butter, melted
Chopped pecans are optional
You may want to get some vanilla ice cream!
1 box Vanilla or chocolate cook and serve pudding mix (I used vanilla)

Mix first five ingredients and 1 1/4 cup of milk together in a bowl with a mixer then pour into lightly greased crock pot.

In another bowl mix the remaining 2 cups of Milk with cook n serve pudding then pour on top of cake mix in crock pot.

Turn on low for 3 1/2 hours then once it's done turn it off and sprinkle marshmallows and Choc chips on cake and let sit for 15 min until marshmallows melt... Then eat and be in love!!!