When my mom showed me some Blue Pea flowers (bunga telang) the other day, I know she is gonna make some nonya kuih.
She made some glutinous rice with coconut topping (Pulut Inti) wrapped in banana leaves.
She soaked the flowers in hot water to extract the blue from the flowers to mix with the cooked rice. You can say the colouring is organic!
She made enough to feed the boys at home.