Warm the butter in a pan over medium heat, add the honey, and sprinkle in the cinnamon.
Add the bananas cut-side down and fry for 5-7 minutes, then flip for another 3, until golden brown and sticky.
Add the bananas to a blender and let them cool for a minute.
Add the yogurt, milk, and the saffron with its soaking milk if using. Blend until smooth.
Pour over ice and serve.
