For the shrimp: 10 large (16–20 size) raw Gulf shrimp, shell-on, head-on if possible Kosher salt 2 tablespoons grapeseed oil, plus more as needed 2 garlic cloves, minced ½ yellow onion, finely ...

Peel and devein 1 pound raw jumbo shrimp if needed, then pat dry with paper towels.

Briefly rinse the dried shrimp then put them in a bowl and cover with hot water and leave for 30 minutes. Drain the chillies, discarding the soaking liquid, and drain the shrimp but reserve the ...