It's 10 mins long....could you give me a TL;DW rundown? haha 12,000+ calories in what timeframe? The whole day, or one sitting? Going by the thumbnail for the video, looks like there's ridiculous amount of cheese (fat) involved and dickloads of pasta/dough/bread.
I could do 12,000cal over a couple of hours with a few loaves of bread, couple of jars of peanut butter, and honey.....who needs protein PFFT!