Creating Fluffy Japanese Soufflé Pancakes is a straightforward process. Follow these steps to achieve pancake perfection:

1. Prepare the Batter: In a mixing bowl, sift together the all-purpose flour, cornstarch, granulated sugar, baking powder, and salt. Set it aside.
2. Whisk Egg Yolks: In another bowl, whisk the egg yolks until they are pale. Then, add the milk and vanilla extract, mixing well.
3. Combine Mixtures: Gradually add the dry ingredients to the egg yolk mixture. Stir until just combined and smooth.
4. Beat Egg Whites: In a separate bowl, use an electric mixer to beat the egg whites until soft peaks form. Gradually add 1 tablespoon of sugar, continuing to beat until stiff peaks form.
5. Fold Egg Whites: Gently fold the beaten egg whites into the batter in three additions. Be careful not to deflate the mixture.
6. Heat the Pan: Preheat a non-stick skillet over low heat and lightly grease it with cooking spray or butter.
7. Cook the Pancakes: Using a ring mold or pancake ring, pour ¼ cup of batter into the center. Cook for about 3-4 minutes. When bubbles form on the surface, carefully flip the pancake.
8. Steam the Pancakes: To achieve extra fluffiness, add a tablespoon of water to the skillet and cover it with a lid. This will create steam, helping the pancakes rise further. Cook for an additional 3-4 minutes.
9. Repeat: Continue with the remaining batter, ensuring to grease the pan as needed between batches.
10. Serve Warm: Once cooked, remove the pancakes from the skillet and serve immediately with your favorite toppings.

With these simple yet effective steps, you can whip up a stack of Fluffy Japanese Soufflé Pancakes that will impress everyone at your table.