Muslims are now the largest religious minority in the United Kingdom. Some media accounts have even suggested that the country is now home to more practicing Muslims than practicing Anglicans. Many studies have investigated British Muslim communities and their strategies of accommodation to the host society, yet there has been little interest in identifying the cultural paths by which Islam in Britain might become a British Islam, given both the historical tenor of British religion and longstanding native perceptions of Muslims. This experimental survey of the issues seeks to explore the possibility of grafting Muslim religion onto the tree of the country's religious and cultural life, as an alternative to illiberal agendas of rejection, or liberal and postmodern affirmations of an external radical otherness. It is suggested that the 'Pelagian' possibility recurrent within British religion offers a suitable point at which this hugely important grafting might take place.