A combination of Greek yogurt, eggs, and allulose.
Preheat the oven to 210°C.
Add Greek yogurt, cream cheese, and sugar to a bowl, and mix until smooth.
Add the eggs one at a time, mixing well after each addition.
Add cornstarch and vanilla extract, then combine thoroughly.
Pour the prepared batter into a baking pan lined with parchment paper.
Bake in the preheated oven at 210°C for 25–30 minutes.
Bake until the center slightly jiggles, then let it cool and chill in the refrigerator for at least 4 hours.
Cut into serving portions.