Ingredients
For the Sponge Cake:
- 4 large eggs , separated (room temperature)
- 1 cup (200g) granulated sugar , divided
- 1 teaspoon pure vanilla extract
- 1 cup (120g) all-purpose flour , sifted
- 1/4 teaspoon salt
- 1/2 cup (120ml) whole milk , warmed slightly
- 1/4 cup (60ml) vegetable oil or melted unsalted butter , cooled
Instructions
Step 1: Preheat the Oven
- Preheat your oven to 350°F (175°C) .
- Grease and flour a 9-inch round cake pan or line it with parchment paper for easy removal.
Step 2: Beat the Egg Yolks
- In a large mixing bowl, beat the egg yolks with half of the sugar (1/2 cup) until pale yellow and thick, about 3–4 minutes.
- Stir in the vanilla extract , warmed milk , and vegetable oil (or melted butter). Mix until smooth and well combined.
Step 3: Whip the Egg Whites
- In a separate clean, dry bowl, beat the egg whites with an electric mixer on medium speed until frothy.
- Gradually add the remaining sugar (1/2 cup) while continuing to beat on high speed. Whip until stiff peaks form—this means the egg whites hold their shape when you lift the beaters.
Step 4: Combine the Batter
- Sift the flour and salt over the yolk mixture in three parts, gently folding with a spatula after each addition until just combined.
- Add about 1/3 of the whipped egg whites to the batter and gently fold it in to lighten the mixture.
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