We have a poorly dog who has been completely off his food (has been to the vet and is being treated for the underlying problem). We've offered him all sorts to eat, and the one thing that he has actually tucked into and enjoyed last night and today has been Farley's rusks mushed up with a tiny bit of milk. Unfortunately an old wheat sensitivity is flaring up so he can't keep having them. Google tells me that Heinz make a gluten-free rusk but none of the supermarkets seem to stock them. Does anyone know where I can get some?