Place the yeast and 2 teaspoons of the sugar in a bowl, then pour in water and leave it for 5 minutes to froth.
Mix your flour, salt, cinnamon and remaining sugar in another bowl.
Make a well in the centre of the dry ingredient mix and add your melted butter, beaten egg, milk, orange zest and raisins. Then pour in the yeast mix.
Mix until combined to make a thick dough.
Cover your dough with a wet cloth and place in a warm place to rise for around 1 1/2 to 2 hours.
Grease or line a baking tray with baking paper.
Flour a surface, then take your dough out and punch it to deflate. Now you can separate it into balls and make your individual buns, placing them on the baking tray.
Cover your tray of buns and leave in a warm place to rise for about one hour.