Cheesecake from New York Christmas by Lisa Nieschlag and Lars Wentrup

Ingredients

• 2–3 tsp icing sugar (confectioner’s sugar)
• 1 tsp orange zest (from an organic orange)
• ¼ tsp cinnamon
• 1 generous pinch of salt
• 2 tsp cornflour (cornstarch)
• 50 g (1¾ oz) butter
• 150 g (5½ oz) frozen blueberries, defrosted
• 120 g (4¼ oz) digestive biscuits (wholemeal)
• 1 tbsp orange juice
• 125 ml (4 fl oz/½ cup) cream
• 1 tsp brown sugar
• 1 egg
• 1 egg yolk
• 1 tsp vanilla extract
• ¼ tsp ground cardamom
• 400 g (14 oz) cream cheese
• 100 g (3½ oz) quark
• 130 g (4¾ oz) caster (superfine) sugar
• Butter for the tin
• 2 tbsp cornflour (cornstarch)