Made the usual bread way but with 5 to 10 minutes hydration time between mixing in the wet ingredients and starting to knead.
25g unsalted butter
1 tsp golden syrup
500g strong white flour plus a little more for dusting
heaped tsp salt
heaped tsp fast-action dried yeast.
Melt the butter into the golden syrup, add the milk, mix well and heat to warm. I used the microwave for this.
The rest is normal bread method with 15 mins at 180C and 20 mins at 160C
The shiny look comes from rubbing some butter over the top when it comes out of the oven.