few dill fronds
4 tsp caraway seeds
25g/1oz cocoa
4 tsp fennel seeds
30g/1oz dark muscovado sugar
4 tsp nigella seeds, plus 1 tsp for sprinkling
2 tbsp extra virgin olive oil
300g/10陆oz dark rye flour
1录 tsp fine sea salt
300g/10陆oz strong white bread flour
2 tbsp black treacle
vegetable oil, for greasing
录 tsp (1g, but it鈥檚 hard to get it to register on the scales) fast-action dried yeast
1 large free-range egg, at room temperature, separated
smoked salmon
500ml/18fl oz Irish stout, such as Guinness, opened in advance if possible