For the firecracker sauce: In a small bowl, whisk together all of the sauce ingredients until well combined. Set aside.
For the shrimp: Season shrimp with salt & pepper to taste. Whisk the flour and cornstarch together in a small bowl, then coat the shrimp in this mixture.
Heat a skillet over medium-high heat and add enough oil to just cover the surface.
Beat the egg in a small bowl, then dip each shrimp in the egg to coat well.
Once oil is shimmering, transfer shrimp to the skillet and cook for about 2-3 minutes on each side, or until golden brown.
Transfer cooked shrimp to a plate lined with a paper towel to remove any excess oil.
Carefully wipe out the hot skillet, then place it back over medium-high heat.
Pour the firecracker sauce into the skillet and bring it to a boil.
Add the shrimp back into the skillet and fold with a spatula to thoroughly coat with the sauce. Season with a bit more salt and/or pepper, if needed.
Serve firecracker shrimp immediately, with sesame seeds and chopped chives if desired. We like to eat this over white rice or cilantro lime rice, with a side of super greens.
