Add enough olive oil to large saucepan so it's 2-3" deep. Heat up to 400F, or until the oil is glistening.
Thinly sliced the carrot, white onion, and kohlrabi into toothpick-sized strips. The thinner, the crispier the fritters will be.
In a large bowl, beat the eggs until smooth. Add the warm water and seasonings. Mix well.
Add the flour and mix until a thick but slightly runny batter. Add more warm water, as needed.
Add the veggies into the batter and toss until very well combined.
Working with your hands, add about 1/3 cup veggie batter into the frying oil. Add 1-2 more fritters, if space allows.
Fry until golden brown on both sides, about 3-4 minutes.
Remove with tongs or a slotted spoon to a paper towel lined plate to drain excess oils.
Enjoy warm with your favorite dipping sauce or sour cream!