Pressure-Cooker Shrimp Bisque

Toss shrimp with 1/2 teaspoon salt in a bowl. In another small bowl, stir together cornstarch and 1/4 cup water until smooth.

In a 6-to-8-quart pressure cooker, combine reserved shrimp shells, 3 cups water, wine, onion, celery, carrot, 1/2 teaspoon salt, and 1/4 teaspoon pepper.

Stovetop: Secure lid. Bring to high pressure over medium-high heat; reduce heat to maintain pressure and cook 8 minutes. Remove from heat and quickly release pressure, then remove lid.

Electric: Secure lid. Manually set cooker to 10 minutes and let it come to pressure. Once time is complete, turn off and quickly release pressure, then remove lid.

Strain liquid through a medium mesh sieve set over a large bowl, pressing on solids (discard solids). Return stock to cooker, add paprika and cream, and bring to a boil in stovetop cooker over medium heat, or in electric cooker set to saute. Whisk cornstarch-water mixture into soup to thicken slightly, 1 to 2 minutes. Add shrimp and cook, stirring, until just cooked through, about 3 minutes.

Season with salt and pepper, then stir in dill and butter. Top with watercress and serve immediately with baguette.