Chocolate, Cardamom and Hazelnut Babka

INGREDIENTS

For the dough

120 milliliters

full-fat milk

50 g

caster sugar

1 1/2 tsp

fast-action yeast

large free-range egg

280 g

strong white flour, plus extra for dusting

1/2 tsp

salt

1 tsp

ground green cardamom seeds

60 g

unsalted butter, softened, plus extra for greasing

60 g

dark chocolate, chopped into small pieces

15 g

white chocolate, chopped into small pieces

25 g

hazelnuts, chopped into small pieces

large free-range egg yolk

For the glaze

130 g

caster sugar