1. In a bowl, mix the Greek yogurt with the sugar, eggs and vanilla extract. Mix well until you obtain a creamy mixture.
2. Sift and add the cornstarch, then add the chocolate chips.
3. Pour the mixture into the circular mold (20 cm in diameter) and level well with the spatula.
4. Cook in a static oven at 180° for 50 minutes.
5. Remove the springform pan and sprinkle the cake with icing sugar before serving.
