In a large saucepan, bring 6 cups water to a boil. Remove from heat, and add shrimp and Old Bay Seasoning. Cover, and let stand for 5 minutes to cook shrimp. (Shrimp will be opaque and pink/white when done.) Drain shrimp, and transfer to a bowl filled with ice to cool shrimp. Remove shrimp from ice, and blot dry on paper towels.
In the work bowl of a food processor, pulse shrimp until very finely chopped.
In a mixing bowl, combine cream cheese and whipping cream. Beat at high speed with a mixer until smooth. Add shrimp, chives, parsley, lemon zest, lemon juice, hot pepper sauce, salt, garlic powder, and black pepper, beating until mixture is smooth and creamy. Transfer mixture to a covered container, and refrigerate until cold, approximately 4 hours.
Transfer mixture to a piping bag fitted with a large open-star tip (Wilton #1M). Pipe onto crackers in a decorative rosette pattern.
Garnish each canapé with a lemon curl, if desired.
Serve immediately.
Notes
*We used 34° Natural Crisps. Make-Ahead Tip: Shrimp mixture can be made a day in advance, placed in a covered container, and refrigerated until needed.
Recipe by TeaTime Magazine at https://teatimemagazine.com/shrimp-mousse-canapes-recipe/