Apple pie and almond cream (Ray Capaldi)

Name: Apple pie and almond cream (Ray Capaldi)
Prep time: 20 min
Cook time: 1 h 30 min
Total time: 1 h 30 min
Yield: 8 portions
Ingredients: 700 g shortcrust pastry; plain flour; 8 Granny Smith apples; 1 tbsp freshly squeezed lemon juice; 20 g salted butter; 270 g apple juice (100%); 50 g potato starch; 60 g caster sugar; ¼ tsp ground cinnamon; 1 tbsp vanilla essence; 1 tsp ground nutmeg; 1 pinch salt; 1 egg yolk; raw sugar; plain flour; 400 g almond milk; 20 g cornflour; 10 g white sugar; 1 pinch sea salt