Cranberry and orange cheesecake

Ingredients

• 1⁄2 a 415g can pear quarters, in fruit juice, drained
• 50ml water
• 15g caster sugar
• 250g cranberries, fresh or frozen
• 1⁄2 orange, zest only
• 1⁄2 teaspoon ground cinnamon
• Freshly grated nutmeg, to taste
• 12 (about 180g) reduced-fat digestive biscuits, crumbled
• 40g reduced-fat buttery spread, melted
• 150g reduced-fat cream cheese
• 150g thick fat-free Greek-style yoghurt
• 1⁄2 orange, juice only
• 1 teaspoon vanilla extract