Apple and Walnut Croissants - Yummy Expert

Ingredients

• 140 ml warm water
• 10 g dry yeast
• 1 tbsp sugar
• 250 g flour
• A pinch of salt
• 30 g butter (room temperature)
• 5 medium-sized apples (peeled and cubed)
• 2 tbsp brown sugar (or caster sugar)
• Ginger (to taste)
• Cinnamon (to taste)
• Juice of half a lemon
• 100 g walnuts (half grated, half chopped)
• Oil (for greasing)
• 1 egg yolk
• 2 tbsp milk