smoking chicken know how

I would like to make smoked chicken as it is not available here in UK - I used to be able to get it in S.A. and I think it is fab. I live in a small flat in cold, very cold UK. My question is;

Can I smoke chicken breast in a "Go Chef" cooker or my oven maybe and how would I go about it if I do not have a smoker. (do not have space for one) I read somewhere that you should cook the chicken first and then smoke it, is this correct? Thanks. Rose