This is one of our favorite celery recipes and was one that we had to include in our cookbook, Bountiful.
In a large bowl, combine the shrimp, 1 tablespoon of the oil, fish sauce, sugar, and pepper to taste. Gently toss to coat the shrimp.
Heat a sauté pan over high heat. When the pan is very hot, swirl in the remaining 1 tablespoon oil. Add the celery and cook for 1 minute, stirring occasionally.
Add the shrimp and cook for 1 minute. Flip the shrimp and cook for 1 minute more, or until pink.
Season with salt to taste and serve warm.