It is easy.
Peeled eggplants
Cut them 2 or 3 inches Long
Soak them in saltwater for 10 mins, then let them dry. ( this trick will keep the eggplants look fresh and won't change their pigment.)
1 small bow of tempura batter mix. ( add 1 egg if you like more crunchy )
Dip eggplants in the tempura mix before you fry them ( deep fry or use air fry if you prefer no oil) take them out and let it cool down.
Optional :
Coach one more time ( tempura mix only- no egg)and fry them one more time. This trick will help it stay crunchy until you eat even when they are no longer hot. If you prefer crunchy ness.
Diluted Fish sauce:
Peeled garlic, minced. Lemon squeezed water, remove the seeds to avoid bitterness.
Make sauces according to the proportions:
2 teaspoons of boiling water, 2 teaspoons of sugar,
1 teaspoon of fish sauce,
1 teaspoon of lemon.
Add chilly if you like.
Then stir well.
Boil 2 or 3 egg
Soft boil:5 mins
Hard boil: 10 mins.
Cut them and mix them into diluted fish sauce.
Eat with rice (add more diluted fish sauce to your taste.)

I hope you will like it.