Mix cake mix as directed (i use butter and milk instead of water and oil) add 1/2 of the marshmallow's to the batter and a can of the icing. Mix well.
Once the cake has finished baking, poke holes in the cake (in a rectangle pan, i poke 3 holes across and 4 down)and squirt the caramel into the holes till it overflows and lightly covers the cake. cool in the fridge.
When the cake has finished cooling, put the other can of icing on the cake sprinkle the marshmallow's, choc chips and pecans on top. Cut and Serve!! My kids prefer this cake cold!!