In a large bowl, combine the chicken, eggs, and black pepper. Let this sit for a few minutes.
In a small bowl, combine the lemon sauce ingredients and set aside.
Add the cornstarch to the medium bowl. Coat each piece of chicken one at a time, then transfer to a baking sheet dusted with cornstarch.
Heat 2 inches of oil in a large pot to 350°F. Fry the chicken in two batches for 5 minutes each until golden and crispy. Drain on paper towels.
Give the lemon sauce a stir, then pour it into a large skillet. Heat until it boils and thickens. Add the chicken and toss to combine. Serve immediately.