These pan-seared shrimp are slightly crispy, totally juicy, and each plump bite is glazed with a sweet, savory, and nutty blend of gochujang, soy sauce, brown sugar, and sesame.
In a medium bowl, whisk together the water, gochujang, soy sauce, brown sugar, sesame oil, garlic, and 1 tablespoon of the cornstarch. Set aside.
In a second bowl, combine the shrimp, remaining 1/3 cup cornstarch, onion powder, 1/2 teaspoon salt, and 1/2 teaspoon black pepper. Toss to coat the shrimp well.
Heat the oil in a large skillet over medium-high heat. Add shrimp in a single layer (work in batches if necessary). When the bottom of the shrimp are golden brown, flip and cook the second side until golden brown. Return all the shrimp to the skillet, add the sauce and simmer for 1 to 2 minutes, until the shrimp are opaque and the sauce thickens.