How to Make It
Preheat the oven to 450°. In a food processor, combine half of the shrimp with the butter and process until pureed.
In a large bowl, toss the rest of the shrimp with the water chestnuts, scallions, wine, soy sauce, sesame oil, salt and sugar. Blend in the shrimp butter. Spread about 1 1/2 tablespoons of the shrimp mixture on each baguette slice.
In a large skillet, heat 1/8 inch of vegetable oil until shimmering. Put the sesame seeds in a small bowl. Dip each shrimp toast in the sesame seeds to coat the shrimp mixture. Fry about 8 toasts at a time over moderately high heat, shrimp side down, until the shrimp mixture turns pink, about 25 seconds. Using tongs, transfer the toasts to a large rimmed baking sheet, shrimp side up. Repeat with the remaining toasts, adding more vegetable oil to the pan as needed. Bake the toasts for about 5 minutes, or until the shrimp mixture is cooked through. Serve right away.