As delicious as everything looks, I had one big problem: where is pudding??!
It became apparent that 'gorillas don't eat cake' or even, in this zoo, bananas (the staff clearly don't care whether their primates are super monkeys or not). I rushed home and made sure I used both:
Then, inspired but underwhelmed by the mixture of unsweetened, unsalted popcorn and cereals the gorillas get, I made a series of improvements which I hoped would make the lot end up tasting like toffee:
It didn't look promising at first
But, after twenty minutes in the oven (and another twenty minutes hacking the crunchy gooey sticky result out of the tin - the most exercise I've had in weeks) I can safely say that gorilla's lunches contain most of the raw ingredients for proper food. All it needed was a bit of salt and sugar.
Another problem solved, then. Onward!