Preheat oven to 375°F, prepare pans. Combine flour, bran, baking powder, cinnamon & bananas. Heat the butter, golden syrup, sugar & milk in a pot, add the baking soda & passionfruit syrup. Add the dry mix to the wet mix until just combined. Spoon into pans & bake for 15 mins or until golden brown. Makes 12 large muffins. 268 calories per muffin.