Using Electron Cash select Wallet -> Private Keys -> Sweep from the menu.
Then enter your Bitcoin private keys. Obviously these keys would need to have a balance at the time of the split.
Finally click 'Sweep' and your Bitcoin Cash balance will appear shortly. You will receive a Bitcoin Cash amount equivalent to the Bitcoin balance at the time of the split.
I know this, unfortunately this leaves my BTC open to a possible replay attack and Electron comes with a huge disclaimer to that effect> I would have hoped that the team behind $BCH $BCC would be a bit more prepared than this!
To prevent the possibility of a replay attack on your Bitcoin, move your BTC to another wallet before claiming your Bitcoin Cash. You can still use the pre-split private key to claim Bitcoin Cash.
Thanks @flowfeed. This is what I did in the end, to much dissapointment since I liked Exodus as a wallet and struggled to find something I would trust enough to put my (considerable) funds in. I resorted to an encrypted USB with a paper wallet on a clean laptop. It was nerve-wracking though. I am pleased to say I now have my $BCH, however no exchange was still accepting deposits yesterday, so sadly, I missed the opportunity while it was up. Now to wait for someone to accept deposits and for the next pump.... if there is ever one, I remain hopeful.