INGREDIENTS: 8 ounces angel hair pasta, cooked according to package directions (half of a 1-pound box) 1/2 cup unsalted butter (1 stick) 1 teaspoon garlic powder, or to taste 1 pound large shrimp, peeled, de-veined, and cleaned with tails off (I prefer 12-15 count shrimp) 1/2 teaspoon salt 1/2 teaspoon pepper 1/4 cup lemon juice 1 teaspoon lemon zest, optional