Don’t know where this formula came from. Been in my spreadsheets for years so I must have made it before. Had a surplus of buttermilk after making cornbread and found it by the simple expedient of doing a search for “buttermilk” in Excel.
It’s not a true wholemeal – 25% bread flour – and the only liquid is buttermilk. But the comparatively small amounts of of honey and butter blend with the other ingredients to produce a soft and mellow flavour.
The PArtisan Baker 
Lovely looking loaf Mick (as usual!).
Formula sounds interesting. It was lovely too to see you and Sue today at Aine’s Memorial (albeit in such sad circumstances). Hope you have a good couple of days in Bath.
I meant what I said about your posts – they are always good value. Your Seeded Spelt Loaf remains on constant repeat here (with a few of my tweaks to justify my existence).
Very best to you both and a safe journey home,
Barry
Really good to meet up again – pity about the circumstances as you say. Thanks for all your kind words, especially appreciated because I know you to be an excellent baker who understands bread. You shouldn’t have made a financial contribution to the site but, instead of sending it back, I shall drink your health!
Best wishes
Mick