Cut the pumpkin into sticks of 1 cm on each side.
Beat the egg and mix with the water. Add the flour and mix, breaking up any lumps.
Heat the oil to 180° in a deep pan, preferably a saucepan rather than a frying pan.
Dip each piece of pumpkin one by one in the tempura and fry until the batter is golden brown.
Drain separately on a rack or absorbent paper.
Serve with honey.