@foxy I've used
Dove's Malthouse quite a lot in sourdoughs, substituting around 10% of the white flour. It makes for a very tasty loaf.
I've now done half a dozen loaves with the JoyRideCoffee method, but I'm struggling to get the same oven spring as I did before. If anyone wants to try it, here's the process.
12 mid-day
Autolyse 375g white flour, 65g spelt flour and 340ml water for 3 hours
3pm
Mix in 88g starter, rest for 30 minutes
3.30pm
Mix in 10g salt, rest for 30 minutes
4pm
Kneed for 10 minutes (I've found this dough hard to work and resorted to using the KitchenAid)
4.30-6.30pm
3 coil folds in first hour
I'll usually get a couple of laminations then a couple more folds in second and third hour.
Shape and place in banneton
17 hour retard in fridge
Bake 11.30am following day
Here's todays attempt at this method, a wholemeal brown. Very tasty, but a tad overproofed and lacking spring.