Preheat the oven to 100°C fan (120°C conventional / 250°F / gas mark 1/2).
Spread the saffron strands out on a baking tray and bake them for 20 minutes. Once baked, grind the saffron into a powder. This helps to release as much flavour as possible.
1 x 0.5g jar saffron strands
Warm 200ml of the milk in a saucepan until it is steaming. Remove it from the heat and stir in the powdered saffron. Set it aside, off of the heat, to infuse for 20 minutes.
200 ml dairy free milk
Warm the remaining 50ml milk gently in the microwave or a pan until it is around 40°C (100°F) (approx 15 seconds in the microwave). Note: If you don’t have a thermometer, you can do the ‘finger test’ - at 40°C (100°F) it should feel neither warm nor cold to the touch when you dip your finger into it (i.e. it’s more or less the same as your body temperature). 50 ml dairy free milk
Add the 50ml of warm milk to a jug with the yeast and 1 tsp caster sugar, stir and set it aside for 10 minutes to froth up.*
1 x 7g sachet dried instant yeast, 1 tsp caster sugar
Add the melted butter to the saffron milk and stir together. Let the liquid cool to 40°C (100°F), which should be fairly soon after adding the butter to the milk. Don’t be tempted to use it when it is hotter than this as it could kill the yeast.
140 g dairy free margarine
In a large bowl stir together the flour, 60g sugar, cinnamon and salt.
500 g strong white bread flour, 60 g caster sugar, 1 tsp ground cinnamon, 1 tsp salt
Make a well in the flour mixture and pour in the saffron milk and margarine mixture along with the jug of frothy yeast.
Stir it together and then bring it together into a dough. Transfer the dough to a lightly floured surface and knead for 7 minutes until the dough is soft and smooth like bubblegum.
Add the sultanas to the dough in stages and continue kneading for another 2 minutes to incorporate and evenly spread the sultanas throughout the dough.
100 g sultanas
Place the dough in a bowl, cover it and leave it in a warm place to prove until it has doubled in size. Depending on the warmth of your kitchen this should take between 1.5 - 2 hours. Note: The proving of this dough takes a little longer than other doughs, such as bread dough, due to the spices and fruit. Turn the dough out onto a lightly floured surface. Divide it into 8 sections and roll them between your hands to make balls. Place the dough balls on a lined baking tray, spread out, and set the tray aside somewhere warm to prove again for 30 minutes. Note: If you want your buns to be more uniform in size you can weigh the dough out - you should have approximately 8 x 120g. Preheat the oven to 180°C fan (200°C conventional / 400°F / gas mark 6) and then bake the buns for 18-20 minutes until they are golden on top.
Add 3 tbsp of boiling water to a small dish with 3 tbsp of caster sugar and stir together for 30 seconds until the sugar has dissolved. Note: If you want a super smooth glaze on the buns then you can add the water and sugar to a small saucepan and simmer for a minute. 3 tbsp caster sugar, 3 tbsp hot water
As soon as the buns are out of the oven, brush them with the glaze.
Place the buns on a cooling rack to cool.