Preheat your oven to 180°C (350°F) and grease a 7-inch round cake tin with butter or oil.
In a large mixing bowl, combine 200 grams of all-purpose flour (maida), 1 teaspoon of baking powder, and a pinch of salt. Mix well and set aside.
In another bowl, whisk together 200 grams of softened unsalted butter and 200 grams of powdered sugar until light and fluffy.
Add 4 eggs, one at a time, to the butter-sugar mixture, whisking well after each addition.
Stir in 1 teaspoon of vanilla extract.
Gradually fold the dry ingredients into the wet ingredients, mixing gently until a smooth batter is formed.
Pour the batter into the greased cake tin and tap gently to remove any air bubbles.
Bake in the preheated oven for 30-35 minutes, or until a toothpick inserted into the center of the cake comes out clean.
Allow the cake to cool in the tin for 10 minutes, then transfer it to a wire rack to cool completely.