I used to love the choc tetras, too. My fave thing was to freeze them as choc ice cream. I also loved pouring the thick chocolate liquid into a big mug and then topping up with boiling water for a yummy hot chocolate. Great on cold mornings/afternoons/evenings.
A pal of mine did three months on Cambridge using the choc tetras, only. Three a day for three months! She just loved them.