A very common ingredient in Malay and Indonesian cooking, it’s often ground and used to thicken and enrich curries and stews. Known in Malay as Buah Keras and in Indonesian as Kemiri, candlenuts are not eaten raw as they are slightly toxic.
Until a fe years ago, I couldn’t get these in the UK, and had to either use macadamia nuts or rely on visitors from Singapore to bring them for me. Having said that, there is only one online store that stocks this.
Substitute: Macadamia Nuts (the perfect substitute), a smaller amount of cashew nuts, which are much creamier.