Step 1: Marinate the Chicken

In a bowl, add the chicken cubes, soy sauce, and 2 tablespoons of cornstarch. Toss to coat, then cover with plastic wrap and let it marinate for 30 minutes.

Step 2: Prepare the Lemon Sauce

While the chicken is marinating, mix together the lemon juice, sugar, water, 2 teaspoons cornstarch, and lemon zest in a small bowl. Set the sauce aside.

Step 3: Coat the Chicken

After the chicken has marinated, add the flour and ½ cup of cornstarch to the chicken. Toss to coat the chicken pieces evenly.

Step 4: Fry the Chicken

In a pot, heat oil about 3 inches deep over medium-high heat until it reaches 350°F (175°C).

Fry the chicken in batches, being careful not to overcrowd the pot. Fry the pieces until golden brown and cooked through, about 4-5 minutes per batch.

Once fried, transfer the chicken pieces to a skillet or pan.

Step 5: Coat with the Sauce

Turn off the oil and set the skillet with the fried chicken on medium-high heat.

Add the prepared lemon sauce to the skillet and toss the chicken in the sauce for just a few seconds until it thickens.

Step 6: Serve

Serve the crispy lemon chicken immediately with steamed rice and vegetables for a complete meal.