Put the flour, remaining sugar, spices, salt, butter, egg, yeast mixture and water into the bowl of an electric stand mixer fitted with the dough hook attachment. Mix on low speed until a dough forms; add a little more water if you need it, you’re looking for a soft sticky dough (most of it should be mixing around the hook, but it won’t completely leave the sides of the bowl). Increase speed to medium and mix until the dough is soft, smooth and elastic, about 7 minutes.
1/3 cup superfine sugar, 4 cups bread flour, 2 tsp mixed spice, 1 tsp ground cinnamon, 1 tsp ground ginger, ½ tsp fine salt, 3 oz unsalted butter, 1 egg, 1/3 cup water