Pat the squid dry with paper towels. In a medium bowl, whisk together the buttermilk, garlic, thyme, lemon zest, salt, and pepper. Add the squid and stir to coat. Cover and refrigerate for 30 minutes, or up to 1 hour max. Any longer and the texture can get too soft.
1½ lbs cleaned squid rings and tentacles, 1 cup buttermilk, 2 cloves garlic, 3–4 sprigs fresh thyme, peel of 1 lemon, 1 teaspoon kosher salt, ½ teaspoon black pepper
In a shallow dish, whisk together the flour, cornstarch, panko, salt, pepper, garlic powder, onion powder, paprika, and dried herbs. Set aside.
¾ cup all-purpose flour, ¼ cup cornstarch, 1 cup panko breadcrumbs, 1 teaspoon kosher salt, ½ teaspoon black pepper, 1 teaspoon garlic powder, ½ teaspoon onion powder, ½ teaspoon smoked paprika, ½ teaspoon dried oregano
Pour oil into a heavy-bottomed deep skillet or Dutch oven to about 2 inches deep. Heat to 350°F over medium-high heat, using a candy thermometer to monitor the temperature.
Neutral high-heat oil
While the oil is coming to temperature, remove squid from the marinade, shaking excess marinade off. Working in batches, toss the squid in the dredge mixture, pressing lightly so the coating adheres. Let them rest for 5 minutes on a wire rack.
Fry the squid in the heated oil in batches for 60–90 seconds, until floating, golden, and crisp. Don’t overcrowd the pan, work in small batches to keep the oil temperature steady. Use a slotted spoon or spider to transfer to a wire rack with paper towel underneath it to catch any dripping oil.
While still hot, sprinkle with flaky sea salt and extra lemon zest. Serve immediately with lemon wedges and your favorite dipping sauce!
Flaky sea salt, Finely grated lemon zest, Lemon wedges