This Simple French Yogurt Cake is sure to please! It's easy and delicious, what more could you ask for? Enjoy!
Preheat oven to 400 degrees F. In a medium-sized bowl, beat egg yolks. Add sugar, vanilla, oil, yogurt, flour, and baking powder, and stir. In another bowl beat egg whites until stiff. Carefully fold egg whites into the other mixture and pour into a greased 9-inch cake pan. Bake at 400 degrees for 20-30 minutes or until a toothpick inserted comes out clean.