Buckwheat flour and sourdough have a natural affinity, as you will see when you make this excellent bread. Use any white flour starter. I also like to use this bread for stuffings.
Place all the ingredients in the pan according to the order in the manufacturer’s instructions. Set crust on dark and program for the Basic cycle; press Start. (This recipe is not suitable for use with the Delay Timer.)
When the baking cycle ends, immediately remove the bread from the pan and place it on a rack. Let cool to room temperature before slicing.