In a medium bowl, toss sliced chicken breast with 1 tbsp salt and 1 tbsp cornstarch until evenly coated. Let rest for 15 minutes at room temperature.
In a small bowl, whisk together soy sauce, rice vinegar, honey, sesame oil, and white pepper. In a separate small container, create a slurry by mixing remaining 1 tbsp cornstarch with 1 tbsp cold water. Set both aside.
Place your skillet over medium-high heat and preheat for 3-4 minutes until it reaches approximately 375°F (190°C).
Add 2 tbsp of oil to the skillet, swirling to coat. Add chicken in a single layer. Allow to cook undisturbed for 1 minute, then stir-fry for an additional 2-3 minutes until just cooked through (internal temperature of 155°F/68°C). Remove to a clean plate.
Add remaining 1 tbsp oil to the skillet. Add garlic, ginger, and white parts of green onions. Stir-fry for exactly 30 seconds until fragrant but not browned.
Add carrots to the skillet first, stir-fry for 1 minute. Add bell pepper, stir-fry for 1 minute. Finally add snow peas and stir-fry for 1 minute. Vegetables should be crisp-tender.
Return the chicken to the skillet along with any accumulated juices. Toss to combine with vegetables.
Pour the sauce mixture around the perimeter of the skillet. Allow to bubble for 15 seconds.
Re-stir the cornstarch slurry, then drizzle it into the skillet while stirring constantly. Continue cooking for 30-60 seconds until sauce thickens and becomes glossy.
Remove from heat. Garnish with reserved green onion tops sliced on the bias.