01 - Combine soy sauce, brown sugar, and water in a medium bowl. Stir until sugar completely dissolves. Set aside.
02 - Heat vegetable oil in a large skillet or wok over medium-high heat until shimmering.
03 - Add chicken pieces to the hot pan. Cook for 4–5 minutes, turning occasionally to brown all sides evenly.
04 - Add minced garlic and grated ginger to the pan. Sauté for 1 minute until fragrant, being careful not to burn the garlic.
05 - Pour the prepared sauce over the chicken. Stir well to ensure all pieces are evenly coated.
06 - Bring to a simmer and cook for 6–8 minutes, or until the sauce thickens to a glossy glaze and chicken is cooked through.
07 - Remove from heat. Garnish with sliced green onions if desired. Serve immediately over steamed rice or noodles.