In a medium bowl, coat the cubed chicken thighs first in the beaten eggs, then toss them in the cornstarch until fully coated.
Heat the vegetable oil in a large skillet or wok over medium-high heat. Fry the coated chicken in a single layer for 5 to 7 minutes until golden brown and cooked to an internal temperature of 165°F. Remove from the pan and set aside.
Drain all but 1 tablespoon of oil from the skillet. Add the minced fresh ginger and minced garlic, sautéing for 30 seconds until fragrant.
Whisk together the soy sauce, rice vinegar, honey, and red chili flakes in a small bowl. Pour this mixture into the skillet and let it simmer for 1 to 2 minutes until it begins to thicken into a glaze.
Return the crispy chicken to the skillet, tossing well to ensure every piece is coated in the spicy ginger sauce.
Remove from heat, garnish with toasted sesame seeds and sliced green onions, and serve immediately.