Why do you fry the chicken twice?
The first fry (a few minutes) cooks the chicken through and lightly golden it. After a 5-minute rest, the second fry at very hot oil for 1–2 minutes creates the signature deep golden, extra-crispy exterior without drying out the meat.
Can I use cornstarch instead of potato starch?
Yes. Cornstarch will work and create a crispy coating, though potato starch tends to yield a slightly lighter, crispier texture. Use the same amount (3/4 cup).
What does the baking powder do in the marinade?
Baking powder tenderizes the chicken by raising the pH of the meat, breaking down proteins and allowing it to absorb moisture. This ensures juicy, tender chicken inside the crispy coating.
Can I make this dish ahead of time?
The battered chicken can be prepared up to 2 hours ahead and refrigerated. The sauce can be made ahead, but assemble and serve immediately after adding the fried chicken and broccoli for maximum crispness.
What is MSG and can I leave it out?
MSG (monosodium glutamate) is a flavor enhancer that deepens savory taste. It is optional and can be omitted, though it contributes to the authentic restaurant flavor. The dish will still taste good without it.