What is the name of the flower that smells like peanut butter?

Melianthus major is a weird, dramatic shrub with large, serrated leaves. And yes, it really smells like peanut butter. It doesn't flower.

Cassia didymobotrya is a shrub or small tree producing golden-yellow flowers with a distinct scent of peanut butter that open from brown buds in late summer and autumn. This one has flowers.