Pat the chicken dry and toss with 2 tablespoons cornstarch until well coated. This is the crispy foundation—think armor, but edible.
Heat oil in a large skillet over medium-high heat. Add chicken in batches, sear until golden and cooked through, 3–4 minutes per side. Transfer to a plate and set aside.
In the same skillet, add a touch more oil if needed. Sauté garlic and ginger until fragrant, about 30 seconds. Don’t burn them; we’re going for perfume, not smoke signals.
Pour in orange juice, soy sauce, honey, and vinegar. Stir to combine and simmer for 3–4 minutes until the sauce thickens a bit.
Return chicken to the pan. Toss to coat in the glaze and simmer 1–2 minutes so it sticks nicely. If you like extra gloss, whisk in the remaining 1/4 cup cornstarch with a splash of water and stir in to thicken.
Finish with orange zest, taste, and adjust salt or sweetness. Serve hot and shiny.