The most extraordinary Twix Cookies made by preheating oven to 350°F creaming 1/2 cup room temperature salted butter and 1/2 cup sugar until fluffy adding 1 egg white and 1 tsp vanilla mixing well adding 1 1/2 cups flour and 1 tsp baking powder mixing to smooth Play-Doh dough rolling 1/4 to 1/2 inch thick cutting 2 1/2-inch rounds placing on ungreased pan baking 6 to 8 minutes until puffy and no longer glossy cooling completely on wire rack microwaving 20 unwrapped caramels and 1 tbsp milk 1 minute stirring at 30 seconds to smooth spreading a few teaspoons over each cookie almost to edges chilling in refrigerator 10 to 15 minutes until cold melting 2 cups milk chocolate chips in 30-second intervals spreading thin layer over chilled caramel and allowing to set before serving. A completely extraordinary candy bar Twix cookie recipe.