Dice the eggplant and onion.
Heat cooking oil in a pan and sauté the onion.
When the onion becomes translucent, add the eggplant and stir-fry.
Add soy sauce, minced garlic, and oligosaccharide syrup to season.
Stir-fry until the eggplant becomes tender.
Serve the sautéed eggplant over rice to finish.