In a mixing bowl, loosen the curd cheese with a fork.
Add the egg and Greek yogurt, then mix until smooth and creamy.
Stir in the vanilla extract. Add the polenta and mix gently until combined.
Add your choice of sweetener (Stevia, sugar, honey, or syrup) and mix well.
Fold in the sultanas or dried cranberries, if using.
Spoon the mixture evenly into two small silicone round moulds (or ramekins).
Air fryer: Set to bake at 180°C and cook for 14–15 minutes, until golden on top and just set in the middle.
Oven: Preheat to 180°C (fan 160°C). Bake for about 20 minutes, until golden and firm.
Allow to cool slightly in the moulds before removing.
Serve warm or let them cool completely for a firmer cheesecake-style dessert.