They are an unlikely pair, but the combination of banana and passionfruit is fresh, healthy and delicious; always a winner. Make sure your bananas are ever so slightly firm, with no blemishes.
This pudding is also great served topped with fresh mango slices, instead of the banana, if you like. Sago is a grain often used in puddings and desserts; it is available from some supermarkets and most health-food stores.