Perfect Eggless Vanilla Sponge (Tray Bake, Double Batch)

Ingredients

• 13.75 cup all-purpose flour(450g)
• 22 teaspoon baking powder(8g)
• 31 teaspoon baking soda(5g)
• 41 cup thick yogurt(240g)
• 52 cup icing sugar(240g)
• 62 tablespoon condensed milk(30g)
• 72 teaspoon vanilla extract(10g)
• 82 tablespoon vinegar(30g)
• 91.75 cup milk(380g)
• 101 cup neutral oil(240g)

Instructions

1. 1Preheat oven to 175°C (350°F). Line a large baking tray with a baking mat or parchment paper.
2. 2In a large bowl, whisk together the all-purpose flour, baking powder, and baking soda.
3. 3In another bowl, combine the thick yogurt, icing sugar, condensed milk, vanilla extract, milk, neutral oil, and vinegar. Mix until smooth.
4. 4Add the wet ingredients into the dry ingredients. Whisk until the batter is smooth and lump-free, but do not overmix.
5. 5Pour the batter evenly into the prepared tray. Tap the tray gently to remove air bubbles.
6. 6Bake for 20–25 minutes, or until the surface is springy and a toothpick inserted in the center comes out clean.
7. 7Cool the sponge completely in the tray. Cover lightly to retain moisture.
8. 8Once cool, use an 8-inch ring to cut multiple discs. Slice each disc into layers to yield about 6 even layers.