Preparation Melt butter in large skillet over medium heat. Add shallot and garlic, cook, stirring, until softened, about 3 minutes. Add mushrooms and 1/4 teaspoon salt, cook, stirring, until mushroms have softened and released their liquid, about 7 minutes. Riase heat to medium-high; cook until liquid has evaporated, about 3 minutes more. Stir in parsley 1/2 teaspoon salt, and the pepper. Let cook completely.