List of ingredients...
Sift the flours and sugar together with a pinch of salt in a medium bowl.
Place the milk and vanilla bean in a saucepan and heat over medium heat to a simmer, just before boiling (see Notes).
While the milk is being heated, add the egg yolks to the bowl of flour/sugar and whisk until it is light in colour (see Notes).
Remove saucepan from heat and remove the vanilla pod (if used).
Pour half the milk very slowly into the egg yolk mixture, constantly whisking but not too fast (see Notes).
Pour the egg yolk mixture back into the saucepan that contains the other half of the milk.
Return the saucepan to a low-medium heat, while whisking at normal speed.
Eventually the mixture will thicken after about 1-2 min (forming clumps, which is normal), however keep whisking.
Keep whisking as the custard comes to a boil and keep doing this for about 2 min to keep cooking the flour out.
Remove from heat and spread the pastry cream on a tray to cool quickly or eat hot (yum!).
Cover the surface of the custard with baking paper or plastic wrap so a skin doesn’t form.
Leave to cool down to room temperature before chilling in the fridge.
Use as needed (see Notes).