Step-by-Step Baking Instructions
Step 1: Prep the Oven and Pan
Preheat your conventional oven to 350°F (175°C). Take a standard loaf pan and line it carefully with parchment paper. Allow the paper to hang slightly over the sides—this creates a sling that makes it incredibly easy to lift the delicate cake out of the pan once it finishes baking.
Step 2: Whisk the Liquid Base
In a large mixing bowl, crack the four large eggs. Whisk them vigorously for one to two minutes until they look pale, light, and slightly frothy. Whisking air into the eggs is crucial for giving the cake its lift. Once frothy, add the 1.5 cups of vanilla Greek yogurt and whisk thoroughly until the mixture is completely uniform and smooth.
Step 3: Incorporate the Stabilizer
Sift the 4 tablespoons of cornstarch directly into the wet mixture. Whisk gently but thoroughly until there are absolutely no dry pockets or lumps left. The batter should look completely smooth, liquid, and creamy, similar to a heavy pancake batter or thin custard.
Step 4: Bake to Golden Perfection
Pour the smooth batter into your prepared, parchment-lined loaf pan. Use a spatula to smooth out the top surface if needed. Place the pan on the center rack of your preheated oven and bake for 40 to 45 minutes. You will know it is done when the edges are set, the top has a slight golden-brown tint, and the center has a gentle, uniform jiggle but isn’t wet.
Step 5: Cool and Set
Remove the pan from the oven. The cake will be quite puffed up initially, but it will naturally deflate as it cools—this is completely normal for a flourless custard cake. Let it cool completely inside the pan at room temperature. Once cool, transfer the pan to the refrigerator for at least two hours to let the custard fully set before slicing. Lift it out using the parchment paper edges, dust with a tiny pinch of powdered sugar, slice, and enjoy!
Pro-Tips for the Perfect Texture
While this recipe is incredibly straightforward, a few simple adjustments can help you dial in the exact flavor and sweetness level you prefer.
Controlling the Sweetness: Because this recipe relies on the yogurt for flavor, using a zero-sugar or plain unsweetened Greek yogurt will yield a very tangy, tart cake. If you prefer a traditional sweet dessert profile but want to keep the calories low, add 1/4 cup of your favorite granulated sweetener (like erythritol, stevia, or monk fruit) to the egg and yogurt mixture before adding the cornstarch.
Achieving the Cleanest Slices: Because of the dense, custard-like texture, a warm knife is your best friend. Run your kitchen knife under hot tap water for a few seconds, wipe it dry with a towel, and make your cut. Wipe the blade clean between every single slice to keep the edges looking sharp and presentable.
Storage Tips: This cake tastes best when served chilled. Keep any leftover slices stored in an airtight container in the refrigerator. It will stay fresh, moist, and delicious for up to four days, giving you a ready-made, healthy dessert option whenever a late-night craving strikes.
