This is a video recipe for a fluffy roll cake that can be easily made with just four ingredients and an egg pan. Separate the egg yolks and egg whites, whisk each separately to make the batter, and then mix in the rice flour. Cook slowly in an egg pan over very low heat, spread with whipped cream, roll it up, and chill in the refrigerator until set. Since it can be made easily without an oven, it is a delicious dessert that is perfect for a home cafe or snack.