This cookie reminds us of warm, fudgy brownies—but somehow it tastes even better. Triple Chocolate Skillet Cookie Serves: 1 (10-inch) cookie Ingredients ¾ cup unsalted butter, softened 1½ cups sugar 2 teaspoons vanilla extract 2 large eggs 1½ cups all-purpose flour ¼ cup unsweetened cocoa powder ½ teaspoon baking soda ½ teaspoon kosher salt