Le Gruyère AOP Apple Pie

Ingredients

• 300 g white flour
• 20 g sugar
• 0.5 tsp of salt
• 150 g Gruyère AOP grated
• 80 g butter
• 3 tbsp water
• 1800 g apple (sweet-sour tasting)
• 200 g sugar
• 0.5 tsp ground cinnamon
• 0.25 tsp ground cardamom
• 0.25 tsp ground cloves
• 2 tbsp potato starch
• 1 egg
• 20 g butter
• 1 tbsp sugar