1. Step
Heat butter and 1 tablespoon of the oil in a large skillet over medium-high until butter melts, about 1 minute. Add shallot; cook, stirring occasionally, until softened, about 3 minutes. Add garlic; cook, stirring constantly, 1 minute. Add wine and stock; cook, undisturbed, until liquid reduces by half, about 2 minutes. Add shrimp, pepper, and 1/2 teaspoon of the salt; cook until shrimp are just cooked through, about 3 minutes, turning shrimp once halfway through cook time. Transfer shrimp to a plate and set aside. (Reserve shallot sauce in skillet.)