Preheat your oven to 350°F (175°C).

Grease and flour the two 9-inch round cake pans.

In a bowl, whisk together the all-purpose flour, baking powder, and salt.

In a mixing bowl, beat the softened butter and granulated sugar until light and fluffy.

Add the eggs one at a time, mixing well after each addition, then stir in the vanilla extract.

Gently fold the passion fruit puree into the butter mixture.

Gradually add the flour mixture and milk to the batter, starting and ending with the flour.

Pour the batter evenly into the prepared pans and bake for 30 minutes, or until a toothpick inserted in the center comes out clean.

Allow the cakes to cool in the pans for about 10 minutes before transferring them to a cooling rack.