How to stop 11mo touching oven?

[Rowellen]

My 11 month old DS loves to play with the oven. It has a pretty light and lots of knobs & dials to play with. So far he has turned the temp to full but he hasn't yet turned it on. How do I get him to stop?

I've tried:
explaining to him (I don't think he understands yet),
moving him away (what a fun game - mummy is picking me up),
smacking his hand (he just laughs at me!),
making an angry voice (he's still laughing!)
distraction with other toys/kitchen stuff (lasts about 2 seconds because the oven is so much more interesting)
opening the cupboards around the oven and using them as a barricade (not really practical because he can & does shut the cupboards)

How do I make him understand that the oven is dangerous and not to be touched? I don't want him to burn his little fingers or burn the house down.

Any suggestions?