Tanga, I know I posted in another thread about having made I did a kits and bits dark ale with white rabbit re-cultured yeast. I didn't see your question re same til quite recently, didn't get back to you blah blah... It wasn't really the same, but tastey with caramel type chewy flavours all the same. Plus easy drinking like the White Rabbit dark.
Trying to remember, basically I went into a LHBS looking for inspiration one morning and the young bloke at Daves ( no affiliation etc) threw a Mangrove Jacks Tyneside Brown with a Crystal steep 200 grams (I think dark..) with a can of extract also at me. Yeast with the white Rabbit dark ale yeast re-cultured (my touch as opposed to a Saf 04). 23litre batch. Really nice, but bit more body to it than the White Rabbit.
Might be an extract starting point?