Chocolate Custard Cake

Bahan-bahan (10 porsi)

• 200 g / 7oz Oreo cookies ((1.5 standard packs, Note 1))
• 60 g / 4 tbsp unsalted butter (, melted)
• 3 cups milk (, full fat)
• 2 tsp vanilla
• 2/3 cups caster sugar ((superfine sugar, sub regular))
• 120 g / 4.2 oz egg yolks ((~6 - 7 large eggs, Note 2))
• 5 tbsp (50g) cornflour / cornstarch
• 200 g / 7 oz 70% cocoa chocolate (, finely chopped (I use Lindt, Note 3))
• Chantilly cream
• Raspberry or strawberries
• Icing sugar / powdered sugar (, for dusting)