Peel and core the apple, then cut into roughly 1 cm pieces.
Add milk, cream, vanilla sugar, sugar, vanilla flavor, salt, butter, and apple pieces to a saucepan. Heat over medium heat until boiling, about 5 minutes.
Once boiling, reduce heat to low. Slowly add the semolina while stirring continuously.
Stir for 2-3 minutes until the porridge thickens and returns to a gentle boil.
Divide the porridge into bowls or plates. Sprinkle with cinnamon and sugar to taste.