For those times when you really do want a sweet treat, Nick Honeyman's sugar-free bitter chocolate tart will do the trick. Read what nutritionist Mikki Williden has to say about lowering your sugar intake and about the different types of sugar here.
Heat oven to 150C. Grease a 30cm diameter flan tin or circle cake mould.
Grind hazelnuts in a food processor until they are a fine crumb.
Reserve 20g of the nuts for decoration. Melt the butter and 50g of the chocolate together and combine with the remaining hazelnuts.
Press into the prepared tin and set aside for 10 minutes.
For filling, pour milk and cream into a pot. Rinse pot first with water — a thin layer of water will help prevent milk mixture from sticking when it comes to the boil. Once at the boil, pour over chocolate and whisk well, until melted.
Allow to cool, then whisk in an egg until mixture thickens. Pour into tart base and bake for 15 minutes until set.
To serve, finish with a dusting of the remaining hazelnuts. Cut into slices and eat warm or at room temperature.