It depends what kind of a person you are, if you like fashion you could teach people to customise clothes, if you like glamour you could do a make up tutorial, have a look at some videos on youtube for inspiration.
If you have a pet you could do an item on pet care.
You could stick with the recipe idea, if youre really creative you could do something like "the perfect 3 course meal in under ten minutes' you'd have to be really organised for that and have several already made dishes to account for oven time etc.
You could teach people how to make jewellery, or if you know any different languages you could do something on that - that has the potential to be quite funny if you involve other people by asking them to say things or have a conversation.
You could teach people basic sign language, how to say hello and spell out their name.
I assume a lot of this is already on the internet so it's not like you need to be proficient in it yourself, just prepare well and make detailed notes.