You can easily up the heat factor with extra spicy chili flakes, hot sauce, a hotter chili sauce, and especially hotter peppers. General Tso's Chicken isn't meant to be overly spicy, and the sauce offers more sweet than heat, though you'll get a bit of heat. You can bread then fry the coated chicken for super crispy chicken bites, but this stir fried version is healthier, easier to make with less mess and still quite crispy. Use either chicken breast, chicken thigh, or a combination of both for this recipe. Use a simple chili-garlic sauce from the store, or make your own.
Gochujang can work, though the flavor is different.
I love to use Doubanjiang, which is a Chinese chili bean paste.
