A delicious cake made primarily with egg whites, flour, sugar, and oil. It's a great way to use up leftover egg whites and makes for a light and fluffy dessert.
1: Preheat the oven to 170°C.
2: In a bowl, mix the flour, sugar, and baking powder.
3: Add the egg whites and oil, then mix until well combined.
4: Pour the mixture into a baking pan.
5: Bake in the preheated oven for 40 minutes.
6: Once baked, let it cool and sprinkle with powdered sugar before serving.
