This chocolate treat is perfect for guests – they’ll never believe it’s slimming-friendly!
1. Preheat the oven to 180°C/350°F/Gas 4. Crush the biscuits and mix together with the low-fat margarine. Press into the base of a 20cm springform cake tin and chill.
2. Place the cocoa powder, quark, orange zest, yogurt, Options and caster sugar in a food processor and blend until smooth. Beat the eggs and fold into the mixture. Mix well. Spoon the mixture over the biscuit base. Level and bake for 40-45 minutes or until just set.
3. Turn off the oven and leave the cheesecake to cool in the oven. Cover and chill until ready to serve, then cut into 10 slices. To serve, garnish with mixed berries and a spoonful of fromage frais and dust with icing sugar.