Preheat the oven to 350 degrees Fahrenheit. Cut 3-4 boneless, skinless chicken breasts into bite-sized pieces and season with salt and pepper.: As the aroma of warm air fills the kitchen, you should feel the quiet assurance that the oven is ready to finish the dish. The ambient heat will finish cooking the interior of the chicken while the sauce melts and glazes the exterior. You will notice a gentle, dry warmth when you open the oven, and the consistent temperature helps the sauce reduce evenly. A common mistake is not preheating, which leads to uneven cooking and soggy coating, so always set the oven early.
Add 1 1/2 cups cornstarch to one bowl and the slightly beaten 3 eggs to another bowl. Dip each chicken piece into the cornstarch, then coat it in the egg mixture.: When you slice the chicken , listen for the clean sound of your knife on the cutting board, and take a moment to make pieces as uniform as possible so they cook at the same rate. Seasoning now lets the salt begin to penetrate, improving flavor from the inside out. You should be able to see even, well coated bits on the board. Avoid cutting pieces that are too large because they will take longer to cook and may dry out.
Heat the 1/2 cup canola oil in a large skillet over medium-high heat and cook the chicken until browned.: The tactile contrast is satisfying, the dry powder clinging to fingers before the egg gives a slick film. This two bowl setup ensures each piece gets a dry dredge then a wet coating for optimal crispness. If the cornstarch becomes clumpy, sift it or shake the bowl to even it out; clumps lead to uneven coating and spotty browning.
Place the chicken in a 9 x 13 greased baking dish.: As you dip, you will feel the cornstarch form a fine dusting, then the egg creates a glossy layer that binds the coating. Place pieces on a plate in a single layer so they do not stick together. If pieces clump, separate them immediately, because stuck areas will steam instead of crisping during frying.
Mix 2/3 cup granulated sugar, 1/2 cup lemon juice, 2 tablespoons soy sauce, 3 tablespoons white vinegar, 1 tablespoon lemon zest, 1/4 teaspoon garlic salt, and 1 teaspoon cornstarch in a medium-sized mixing bowl.: When the oil shimmers and you hear a confident sizzle, add a few pieces and watch them brown to a golden color, that sound and color are your signals. Browning imparts flavor through the Maillard reaction and creates the texture contrast we want. Do not overcrowd the pan or the oil temperature will drop, resulting in greasy, soft coating instead of crisp crusts.
Pour the sauce over the chicken and bake for 1 hour.: Transfer the browned pieces in a single layer, leaving any sticky browned bits in the pan if you prefer to deglaze later. The dish should be roomy so sauce can circulate and coat each piece evenly. If the dish is too small the chicken will steam and lose crispness, so choose the right sized pan.
Stir the chicken every 15 minutes so that it is coated in the sauce.: Whisk until the sugar dissolves and the cornstarch is fully dispersed, the mixture will go from grainy to smooth and slightly glossy. The scent will shift from syrupy sweet to a bright citrus tang as the lemon zest releases oils. If you notice any gritty texture, whisk longer or dissolve the cornstarch in a tablespoon of water first, because lumps will create uneven thickness in the sauce.
Serve over rice and enjoy!: As the sauce heats, it will begin to bubble gently and the aroma of lemon and caramelizing sugar will fill the kitchen, signaling that the flavors are marrying. The oven heat allows the sauce to thicken and cling to the chicken , creating a glossy finish. A common issue is baking at too high a temperature which can burn the sauce edges, so keep the temperature steady and check visually through the oven window.
Stir the chicken every 15 minutes so that it is coated in the sauce: Use a spoon to gently turn pieces, ensuring the sauce reaches every bite and the coating remains moist and shiny. You will see the sauce thicken and darken slightly, and the surface will glisten with a syrupy sheen. Avoid vigorous stirring which can tear the coating off the chicken ; gentle turns are enough to redistribute the sauce and promote even glazing.
Serve over rice and enjoy: The final moment is all about contrast, place the sauced pieces over steaming rice so each forkful combines crisp texture and saucy brightness. You will hear the satisfying fork against the bowl and taste sweetness, tang, and savory notes in one bite. If the sauce seems too thin, let it rest a few minutes to set, and if it is overly thick, loosen with a splash of warm water. Avoid serving straight from a cold oven because the sauce is best when warm and glossy.