Marble Cake

We start by preheating the oven to 180°C and greasing the baking pan well with softened butter or lining it with baking paper.

We sift the flour, baking powder, and salt and set them aside.

In a large bowl, we add the butter and beat it with a hand mixer until light and fluffy, then gradually add the sugar and continue beating for at least 5 minutes.

We add the tablespoon of oil, then gradually add the eggs, beating well after each egg until fully mixed.

We begin adding the dry ingredients alternately with the milk, starting with the dry ingredients and finishing with them.

We avoid over-mixing the batter, and for the last two additions of flour and milk, it's best to mix using a spatula.

We divide the batter into two parts. To one part, we add the sifted cocoa powder, followed by the melted chocolate, and gently fold it in.

We start filling the baking pan with the vanilla and chocolate mixtures and create a marbled effect using a butter knife.

We bake for almost one hour

For the sauce, we heat 2 tablespoons of unsalted butter and milk in a small saucepan until the butter melts and the milk is hot, then we add the chopped chocolate and cover the saucepan for a few minutes.

We uncover the pan and whisk well until we get a smooth, glossy chocolate sauce