Rich dark chocolate tart with poached pears

Ingredients

• Rich dark chocolate tart
• 125 grams cold butter, chopped
• 1/4 cup (40g) icing sugar
• 1 1/4 cup (185g) plain flour
• 1 tablespoon dutch cocoa
• 1 egg yolk
• 1 tablespoon chilled water
• 400 grams dark chocolate (50% cocoa) chopped
• 200 grams butter, chopped coarsley, extra
• 2 eggs
• 1 tablespoon plain flour
• Poached pears
• 1/2 cup (125ml) lemon juice
• 1/2 cup (175g) honey
• 2 cups (500ml) water
• 1/2 cup (110g) caster sugar
• 1 vanilla bean, split lengthways
• 6 green pears (1.2kg), peeled, quartered
• Honeyed walnuts
• 3/4 cup (75g) walnuts
• 1 tablespoon honey