How to make Vanilla Sponge Cake
Step 1 Preheat oven and prepare the baking pan
Preheat the oven to 350°F. Prepare an 8-inch pan by greasing and flouring it, then lining it with a parchment round. Set aside for later.
Step 2 Prepare the cake batter
In the bowl of an electric mixer fitted with the paddle attachment, combine all the dry ingredients. Beat in the butter till the flour mixture forms a sandy texture. Then add half the milk, and beat the mixture until it’s smooth (about 1 minute). Meanwhile, combine the other half of the milk with the other wet ingredients (eggs and vanilla) in a large glass cup measure (or bowl with a pouring spout). Add half the liquid mixture to the mixer bowl, and beat for about 20 seconds, then add the rest, and beat again for 20 more seconds on medium.
Step 3 Pour the cake batter in the greases pan
Transfer the cake batter to the prepared pan and smooth it with an offset spatula. Tap the pan on the counter a few times to get rid of any air bubbles.
Step 4 Bake the cake for about 35 minutes
Bake the cake till a cake tester inserted in the centre comes out clean (about 35 minutes). Once done, let the cake cool for 15 minutes before flipping the cake out of the pan onto a wire rack to cool completely.