Potato Kugel

3 eggs, beaten
3 cups grated, drained raw potatoes
1/2 cup flour
1/2 teaspoon baking powder
1 1/2 teaspoons salt
1/4 teaspoon pepper
3 tablespoons grated onion
4 tablespoons melted butter

Mix well. Pour into a greased 1 1/2-quart baking dish. Bake at 350 degrees F for 1 hour or until browned.