Make the boom boom sauce by whisking together all the ingredients in a large bowl.
Add the shrimp to a large bowl with the buttermilk and let stand for 10 minutes while you heat the oil.
Preheat 1-2” of cooking oil to 375ºF in a large, heavy-bottomed dutch oven or a wok.
Meanwhile, in a separate bowl, whisk the flour with the salt, onion powder and garlic powder.
To fry the shrimp and assemble:
Remove shrimp from the buttermilk and let excess drip off.
Dredge the shrimp in the flour mixture and fry in batches of a few at a time for 1-2 minutes, until opaque and an internal temperature of 145ºF is reached.
Toss the hot fried shrimp in the boom boom sauce. Enjoy!
Video
Notes
See the note in the article about how to make this recipe in the air fryer instead.