This recipe makes two standard sized tarts.
500g puff pastry
1litre + 250ml milk
1 cinnamon quill
50ml custard powder
5 eggs, separated
2,5ml baking powder
ground cinnamon for dusting
Preheat your oven to 200℃ and spray two 22cm tart tins with cooking spray.
Dust a work surface with flour and roll the pastry to 3mm thickness. Line the tart tins – the pastry should be about 1cm larger that the tins to allow for shrinkage during baking.
Place the prepared tart tins in the refrigerator until needed.
Pour 1 litre milk into a saucepan and add the sugar and cinnamon quill. Turn the heat on medium-high and stir the mixture until the sugar has dissolved.
Heat the milk mixture until it starts forming tiny bubbles around the edges of the saucepan.
Remove from the heat and take out the quill. Set aside.
Add the flour, custard powder and cornflour to a mixing bowl.
Drizzle in the remaining 250ml milk while whisking, to make a slurry.
Add the egg yolks to the slurry and whisk together.
Slowly pour the warm milk-mixture into the slurry while whisking continuously. Remember: pour slowly, whisk quickly!
Pour the mixture back into the saucepan and return to a low heat.
Stir the mixture until it thickens and starts to bubble. Take off the heat, add the butter and vanilla, stir through and set aside.
Add the baking powder to the egg whites and beat until stiff peaks form.
Fold the egg whites into the custard and divide the mixture between the two prepared tart tins.
Bake the tarts in the oven for 25 minutes.
Remove from the oven and immediately sift some ground cinnamon on the surface.
Serve with your favourite brew of coffee.