It's a mix of specialist masupial milk called Di-vetalact, some canola oil and some thickened cream. No one makes off the shelf I-Can't-Belive-It's-Not-Echidna-Milk so I have to blend my own. Later on I'll have to mix up some I-Can't-Believe-It's-Not-Termites-Or-Ant-Puepe, but I don't want to plan too far ahead because... you know.