Mol and I discovered this by chance a week or so ago.

Long Chang Asian Supermarket (opposite McDonalds)
720 High Road
Leytonstone
London
E11 3AJ

Tel: 020 8988 1668

They stock quite a good selection of Thai stuff as well as foods from China, Japan, Philippines, Vietnam and Malaysia. They also seemed pretty open to suggestions about what they stocked, as they agreed to stock Holy Basil and Bergamot leaves. Mol's delighted as she can get to it on a 5/8 minute bus ride rather than having to rely on me and the car.

Keith