Name: Babka (Sweet bread with nut and spice filling)
Total time: 90 min
Yield: 10
Cuisine: Polish
Ingredients: 1 vanilla pod; 200ml milk; 3 tsp instant yeast; 70g golden caster sugar; 500g bread flour; 30g non-fat powdered milk; 1/2 tsp salt; 2 eggs (large); 1 egg yolk (large, reserve the white for the filling); 3 tbsp softened butter; 100g toasted walnut pieces; 60g light brown sugar; 100g golden icing sugar; 1 1/2 tbsp ground cinnamon; 1/2 tsp ground cardamom; 1/4 tsp salt; 1 egg white (reserved from dough ingredients); 3 tbsp softened butter; Egg wash – 1 egg whisked with 1 tbsp milk; Extra butter (for greasing the tin); Extra flour (for dusting)