Barossa Brekkie Puddings

Ingredients

• egg yolks
• double cream
• full cream milk
• caster sugar
• vanilla bean paste
• ground cinnamon
• thickly sliced, day-old, soft white bread
• seedless red grapes
• soft butter, plus extra for greasing
• demerara sugar
• Nutella per portion, to serve
• Reduced-fat vanilla Greek yoghurt, to serve