The Yorkshire Leaven is one of the signature loaves produced by the Handmade Bakery in Slaithwaite, near Huddersfield. If you're unfamiliar with the Handmade Bakery, they're a not-for-profit bakers collective who together produce around 1,500 fresh loaves and patisserie every day. They're a central part of the local community and customers come from all around to sit in their cafe, eat fresh bread and cakes and enjoy the warm atmosphere. They shared this recipe a while ago and we think it's long overdue for a fresh airing.