Ingredients

1/4 cup minced celery

1/4 cup minced shallot

1/4 cup chopped parsley

1/4 cup Dijon mustard

1/4 cup plus 1 tsp extra-virgin olive oil

1/4 cup white wine vinegar

3 tsp red pepper flakes (or more to taste)

1/2 tsp salt

2 lb large shrimp, peeled and deveined, tails intact

Preparation

Shake all ingredients except 1 tsp oil in a resealable plastic bag. Refrigerate 4 to 6 hours. Drain with a sieve; shake off excess marinade. Heat remaining 1 tsp oil in a large skillet over medium heat. Cook shrimp in single-layer batches until pink, about 3 to 5 minutes, shaking pan to turn shrimp. Serve warm or at room temperature.