Begin by gathering all the ingredients.
In a blender, combine the orange juice, vegetable oil, and sugar. Blend for 2 to 3 minutes until the mixture is smooth and homogeneous.
In a separate bowl, whisk together the baking powder and all-purpose flour.
Gradually add this dry mixture to the blender, blending until a smooth batter forms.
Pour the batter into a greased and floured cake pan.
Bake in a preheated oven at 180°C (350°F) for approximately 30 to 35 minutes.
The cake is ready when it turns golden and a toothpick inserted into the center comes out clean.
Allow the cake to cool before serving.
