Mix the custard powder with 6 tablespoons of the milk, 3 tablespoons of the blood orange juice, the juice of the lime, the sugar, vanilla sugar and the cinnamon in a bowl until there are no more lumps. Bring the rest of the milk and blood orange juice to a boil. As soon as the mixture boils, remove it from the stove and slowly add the pudding powder, stirring constantly. Mix well and bring to the boil at least once.
Then place in cold rinsed dessert bowls and let cool down until ready to eat. Garnish with a slice of blood orange and lime.