Strawberry cheesecake

INGREDIENTS

• 150g/5¼oz crushed digestive biscuits
• 2 tbsp melted butter
• 2 tbsp caster sugar
• ½ tbsp freshly grated lemon
• 6 tbsp orange juice
• 1 tbsp lemon juice
• 1 tbsp water
• 2 tsp cornflour, dissolved in a little cold water or orange juice
• 100g/4oz caster sugar
• 1kg/2lb 3¼oz strawberries
• 2 sheets gelatine
• 1-2 tbsp of lemon juice
• 350g/12¼oz cream cheese
• 225g/8oz caster sugar
• 300g/10½oz thick Greek-style yoghurt
• 1 tbsp of vanilla extract
• whipped cream
• sprigs of mint