As promised, and carrying on from my last post, here is my recipe for the traditional yeast leavened black bun (Scotch bun). I must say I was really surprised with how well it turned out: it was enriched with so much stuff and was so huge, I thought the poor little yeast cells wouldn’t be able to do their job. I was wrong, but it did take two days to do two provings required before baking.
The white dough is essentially a sweet brioche made without eggs. When it was time to knock it back after its first rising, I was encouraged by the network of small yeasty bubbles that had formed inside the dough.
The bun was huge and made quite the centrepiece (though if you wanted to reduce the quantities and make a smaller one, go ahead). The cake inside was deliciously moist, and the brioche dough wonderfully buttery and thin and in such contrast with the treacle-black centre.
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It may have been big, but it kept well and was perfectly delicious well over a week after baking.
For the basic dough:
450 g plain white flour
450 g strong white bread flour
160 g caster sugar
10 g dried fast-action yeast
20 g salt
160 g softened butter
400 ml hand-hot full-fat milk
A smidge of flavourless oil
For the centre:
750 g basic dough
100 ml black treacle
400 g currants
400 g raisins
100 g candied peel
100 g slivered almonds
1 tsp mixed spice
½ tsp each ground cinnamon and allspice
2 eggs, plus 1 more for glazing
Butter for greasing
Two days before you want to bake your black bun, in the evening, make the basic dough. This is best done with an electric mixer, however don’t let me stop you attempting this by hand. Mix the dry ingredients – flours, yeast, sugar and salt – in your mixing bowl, make a well and add the butter and milk. Mix slowly with a dough hook until everything is mixed together, then turn the speed up a little and knead until smooth. Because it’s a low-gluten mixture and there’s all of that butter and sugar, it won’t be very elastic, but when it’s really smooth, you are done. It should take 8 to 10 minutes.
Paint the inside of a bowl with oil, then bundle up the sticky dough as best you can and cover with cling film. Leave to prove until around double in size. This took 18 hours: I use a low amount of yeast on purpose that the yeast ferments slowly. It may take less time for you if you used more yeast, and if your home is warmer than mine.
Knock back the dough and place 750 g of the dough in your food mixer, then add the treacle, dried fruits, candied peel, almonds, spices and eggs. Mix with a flat beater for a couple of minutes until everything looks smooth and like a Christmas cake batter. Set aside.
Take the remaining dough, form into a ball, place on a floured work surface and roll out into a large circle 32-35 cm in diameter. Make sure your pin is floured too; this will prevent sticking. With slightly wet hands, scoop the dark sticky dough and pop it in the centre of your circle. Now gather the dough so that the centre is completely covered – rather like a giant Eccles cake.
Cut away bits of the dough that have bunched up too much and glue any edges with a thin coat of beaten egg. Don’t worry if it looks a bit messy. Turn the bun over and flatten it with your hands, smoothing away any bulging bits to make a nice round shape.
Now liberally grease a 25 cm flan ring with butter and place on a baking sheet lined with greaseproof paper and then dusted with flour, and place the bun in the centre. Press the bun or lightly roll it with your rolling pin so that is just a centimetre off from touching the edge. Paint the top with egg and scatter over a little granulated sugar, then stab holes in the top with a thin, pointed knife right down to its base – this keeps it flat as it rises. Cover with a large plastic bag and allow to prove until it has grown large enough to fill the ring. For me, this took 12 hours.
Preheat your oven to 175°C and place a heatproof tin on the bottom of the oven. When it’s time to bake the bun boil the kettle, then open the oven and slide your bun onto the middle shelf, gingerly slide the tin out enough so that you can pour in the hot water, slide it back in and close the door.
Bake at this temperature for an hour, then turn the heat down to 140°C and bake for a further 2½ hours. If the top is getting too brown, cover it with some kitchen foil.
Remove from the oven, and slide onto a cooling rack. Remove the ring when the bun is just warm.
The black bun will keep for weeks in an airtight box or tub. It is delicious eaten with sharp cheese.
 I find a supermarket ‘bag for life’ is best for this task. I have one that I use only for proving things like this. Turn it over and turn up the edges, as you would your trousers to make it a sturdy shape and hey presto!