Preheat the Oven: Set to 350°F (175°C) and line the baking pan with parchment paper.
Whisk the Eggs: In a mixing bowl, beat the eggs until smooth and slightly frothy.
Combine Ingredients: Add the sweetened yogurt and cornstarch, whisking until fully incorporated and lump-free.
Pour & Bake: Pour the batter into the prepared baking pan and smooth the top. Bake for 35–40 minutes, or until set and slightly golden.
Cool & Serve: Let the cake cool completely before removing from the pan. Enjoy plain, or top with fresh fruit, honey, or powdered sugar.