In one bowl, whisk together buttermilk, egg, garlic powder, paprika, salt, and black pepper to create your wet batter.
In another bowl, mix cornstarch, breadcrumbs, salt, garlic powder, paprika, and black pepper to form your dry batter.
In a third bowl, combine mayo, sweet chili sauce, minced garlic, black pepper, rice vinegar, sriracha, and dried parsley to make the bang bang sauce.
Heat oil to 350°F.
Dip shrimp in the wet mixture, allowing any excess to drip off. Then coat evenly in the dry mixture, shaking off any excess.
Fry until golden brown all around.
Drizzle some of the bang bang sauce on top.
Serve with steamed rice or veggies for a delicious meal!