- Preheat oven to 350 degrees F (175 degrees C). Grease and flour a 9x13 inch pan.
- In a large bowl, mix together the flour, sugar and baking powder. Make a well in the center and pour in the eggs, oil, orange juice and vanilla. Mix well and pour into prepared pans.
- Bake in the preheated oven for 45 minutes, or until a toothpick inserted into the center of the cake comes out clean. Allow to cool.