In a mixing bowl, whisk together the flour, water, and Doenjang, until very smooth and no lumps left;
Wash and trim the scallions if needed to fit your pan, thinly shred the carrots lengthwise;
Heat a drizzle of oil in a nonstick pan over medium-high heat, arrange the scallion and carrot all parallel to each other in a flat, thin layer, then slowly drizzle the batter on top of the vegetables evenly;
Gently pat with your spatula and keep the rectangle shape of the pancake as it cooks;
When the bottom of the pancake is golden brown, carefully flip the pancake and cook the other side, cook for a few minutes until this side is golden crispy as well;
Remove from the pan and transfer onto a plate, cut into squares;
Mix together all the dipping sauce ingredients;
Serve the pancake hot with the sauce on the side, enjoy!