Super Fluffy Eggless Marble Cake

In the blender, add the liquid ingredients: margarine (at room temperature), milk, vanilla extract, and sugar.

Blend the mixture in the blender until it is completely smooth.

Transfer the blended liquid to a bowl and add the all-purpose flour and baking powder.

Mix all the dry ingredients well with the liquid batter until you get a uniform white batter.

Separate a portion of the white batter into another container and add the cocoa powder (50%), mixing well until the cocoa is completely incorporated.

Prepare the pan by greasing it with cocoa powder.

Alternate the light and dark batters in the greased pan, placing a little of the white batter and then a little of the chocolate batter, to create the marbled effect.

Finish with the chocolate batter on top and, optionally, gently swirl with a fork to accentuate the marbling.

Bake in a preheated oven at 350°F (180°C) for approximately 35 minutes.

For the frosting (optional), heat the heavy cream in a saucepan. When it is hot, turn off the heat and add the chopped chocolate, stirring until it melts completely to form a smooth ganache.

Pour the ganache over the baked cake and serve.