TO MAKE THE SAUCE
Over medium heat, add buffalo sauce, brown sugar, rice vinegar, sriracha, minced garlic, honey, butter, and red pepper flakes to a pot or saucepan. Bring to a simmer to thicken into a glaze. Once it is thick, take off the heat and transfer to a large bowl. Set aside.
Cut chicken breast into small pieces.
In a shallow bowl, whisk together cornstarch, a sprinkle of salt, and a sprinkle of black pepper.
In small deep bowl, whisk together eggs, a sprinkle of salt, and a sprinkle of black pepper.
Heat vegetable oil to 350°F in a frying pan.
Dip a few chicken pieces at a time first in the dry batter, shaking any excess drip off, and then into the wet, letting any excess drip off.
Drop the breaded chicken in, making sure not to overcrowd. Fry in two batches. Once golden, about 6 to 7 minutes, take out of the oil and drain any excess oil on a wire rack.
Toss the chicken in the glaze. If the glaze has thickened too much as it cools, warm it up for 10 seconds in the microwave first and then toss.
Garnish with green onions and sesame seeds and enjoy with rice, noodles, or veggies!