What makes this “earthy”?
The sauce. Browning mushrooms builds that savory, almost meaty depth, then soy sauce and toasted sesame oil make it taste grounded and rich instead of candy-sweet.
Do I have to double-fry?
You do not have to, but it helps a lot. This recipe uses a quick two-stage fry: a lower-temp fry to cook the chicken through, then a hotter fry to crisp and deepen the color. If you only fry once, go at 350°F and keep pieces smaller so the coating does not overbrown before the chicken hits temp.
Can I bake or air-fry instead?
You can, but it will not be quite the same crackle. Also, the wet batter in this recipe is not air-fryer friendly (it tends to drip through the basket before it sets).
If you want an air-fryer version: skip the wet batter. Pat chicken dry, season, then dip in beaten egg and dredge in cornstarch (or a 50:50 cornstarch and flour mix). Shake off excess and let the coated pieces sit on a rack 5 minutes to hydrate and cling. Spray both sides well with oil. Air-fry at 400°F in a single layer until crisp and cooked through, flipping once, 12 to 16 minutes total depending on size. Confirm the thickest piece hits 165°F. Toss with warm glaze right before eating.
Is gochujang very spicy?
It is more of a deep, fermented heat than a sharp burn. Start with the smaller amount, taste the sauce, and add more if you want it louder.
What oil is best for frying?
Use a neutral, high-heat oil like canola, vegetable, peanut, or avocado oil.
How do I keep the salt level right?
Strongly recommend low-sodium soy sauce here. If you only have regular soy sauce, either cut the chicken salt down to 1/2 tsp or thin the sauce with an extra splash of water to keep it balanced.