Step 1

Whisk paprika, thyme, oregano, cayenne pepper, garlic powder, onion powder, white pepper, and black pepper together in a small bowl.

Step 2

Drain shrimp in a colander for at least 15 minutes. Transfer to a bowl lined with paper towels and dry shrimp for about 3 minutes. Remove paper towels from bowl and season shrimp with 1 teaspoon salt and 1 teaspoon spice blend. Toss to coat shrimp with spice blend.

Step 3

Heat vegetable oil a large heavy skillet over high heat until oil is smoking hot. Cook shrimp in the hot oil without stirring for 1 minute; stir, and cook 1 minute more.

Step 4

Transfer shrimp to a large bowl. Let stand until juice forms in bowl. Strain shrimp juices into chicken stock to total 2 cups, adding more chicken stock if necessary.

Step 5

Melt butter in large skillet over medium heat until butter begins to turn tan at the edges. Saute onion, celery, and green pepper in hot butter until softened, about 5 minutes. Pour in remaining spice blend.

Step 6

Sprinkle flour into vegetable mixture and saute until combined, 3 to 4 minutes. Stir in tomatoes; cook until tomato juices begin to brown on bottom of pan, about 3 minutes. Whisk stock into vegetable mixture, stirring until smooth. Bring to a simmer and cook until slightly thickened and reduced to a gravy consistency, 3 to 5 minutes. Stir in Worcestershire sauce and hot sauce. Season with salt to taste.

Step 7

Stir shrimp into etouffee sauce; let simmer until shrimp are cooked all the way through and no longer translucent, about 1 minute.

Step 8

Garnish with green onions and a dusting of cayenne pepper. Pour over rice in large, shallow bowls.