Boil water, sugar, and oil together.
Pour over tapioca starch and mix until crumbly.
Add milk in 3 portions -> knead by hand for 1 minute -> add egg and knead by hand more.
Add cheese, salt, and a bit of parsley.
Chill in the freezer for 30 minutes.
Divide into spoonful portions.
Preheat to 200°C and bake for 15 minutes.