In a large mixing bowl, combine the grated potatoes, onion, and carrot. Squeeze out excess moisture using a clean kitchen towel and transfer the mixture back to the bowl.
Add the finely chopped green onions into the mixture, then sprinkle in the flour, cornstarch, sea salt, and black pepper. Mix everything together until well combined.
Heat a non-stick skillet over medium heat and add 1 tablespoon of vegetable oil to coat the surface.
Using a spoon, scoop a portion of the potato mixture and flatten it into a pancake shape in the skillet. Repeat with additional portions, leaving space between each pancake.
Fry the pancakes for about 4-5 minutes on each side or until golden brown and crispy. Adjust the heat if necessary to prevent burning.
Once cooked, transfer the pancakes to a paper towel-lined plate to absorb excess oil before serving.
For the dipping sauce, simply combine the soy sauce, sesame oil, and sesame seeds in a small bowl.
Notes
Serve warm with dipping sauce for the best flavor.