01 - In a large mixing bowl, combine flour, cornstarch, baking powder, salt, and pepper. Gradually add cold water, whisking until you have a smooth, thick batter.
02 - Add the mung bean sprouts, sweet potato, carrot, onion, and spring onions. Mix well to coat all vegetables in the batter.
03 - Gently fold the shrimps into the batter and vegetable mixture.
04 - Heat vegetable oil in a deep frying pan over medium-high heat.
05 - Scoop about 1/4 cup of the mixture and carefully drop into the hot oil, flattening lightly to form a disc. Fry 2–3 fritters at a time to avoid overcrowding.
06 - Fry each fritter for 3–4 minutes per side or until golden brown and crispy.
07 - Remove with a slotted spoon and drain on paper towels.
08 - For the dipping sauce, combine vinegar, garlic, chili, and salt in a small bowl.
09 - Serve Ukoy hot with dipping sauce.