This variant of Sourdough ups the wholegrain to 50%. Wholegrain makes the wild yeast particularly active (more natural sugars to consume), giving it a lovely tang.
About Sourdough: Centuries old tradition of baking bread, this one uses no commercial yeast. Instead it relies on a 'wild yeast' starter & slow rise / fermentation, which breaks down the gluten into amino acids. This translates into easier digestion even for those who are sensitive to gluten. The slow process (15 hours) not only produces more flavour (and a slight tang), it also translates into a bread that is full of naturally occurring nutrients.