Is it normal for lard soaps to be hard and brittle? I liked the hardness but the brittleness of the batch I made had all but a couple of bard crumbling in the center. Is there an amount of lard that should not be exceed?
No, lard doesn't make a brittle bar. I've made 100% lard soap before and while it hard, there is no brittleness about it at all. Any chance you use tallow or coco butter in the same recipe?