In a bowl, whisk together the egg yolks and sugar
Add in the milk
In a separate bowl, whisk together the heavy cream and cornstarch until smooth
Add the cornstarch mixture to the egg mixture
Transfer to a pot and cook on medium heat, whisking constantly, until thickened to the consistency of a thick pudding or custard
Pour the mixture into a greased 6x6 inch container and let set in the fridge for 1 hour until solidified
Preheat the oven to 350 F
Once set, remove the custard from the container and cut into pieces
Brush each piece with the egg yolk wash
Bake for 15-20 minutes, until the tops are browned
