For her own sake she might not want to try it with a lot of African Christians- she might discover that they can be significantly less tolerant in general and much more full on about Religious issues than "White people".
Does anyone know what Islamic centre she is attending if any?
No- I hold to an Augustinian understanding of the depth of how far humanity has fallen. Islam doesn't really accept the notion of Original Sin and believes that babies are born basically pure. Also I am very convinced that "Blood must be shed for the forgiveness of sins" (Leviticus 17, Hebrews 9). The notion of a cleansing Sacrifice doesn't exist in Islam while it is the basis of Christianity.