Zest the orange and set aside
Juice the orange, then heat the juice in the microwave till hot but not boiling, around a minute. Then add the sultanas
Add the zest. Let sit while you prepare the batter (around 10 minutes) for the sultanas absorb the warm juice and plump up plump up a bit
Preheat the oven to 200°C. Grease a standard muffin tin with non stick cooking spray or paper liners. Set aside
In a large mixing bowl, add the milk, vanilla, oil, yoghurt, eggs and sugar. Whisk until smooth and combined
Next, sift in the flour, baking powder, baking soda, salt and spices. Mix until just combined. Do not over mix
Finally, add the sultanas, juice and zest mixture to the batter and mix through until combined. Do not over mix
Evenly divide the batter between the muffin holes
Bake for around 15 minutes, until golden and a cake tester/skewer inserted in the centre comes out clean
Leave to cool in the tin for 15 minutes, then remove and place on a cooling rack to cool further
Decorate as you wish once cooled completely or serve warm as is