To prepare a Twilight Dark Chocolate Truffles recipe, first you need to prepare your ingredients. First, you'll need your chocolate. You can buy chocolate at your local grocery store, or you can make your own at home with ingredients you already have in your kitchen. To make the truffles, preheat your oven to 375 degrees F (190 degrees C) and line two baking sheets with parchment paper. Then, melt the chocolate in the microwave for 30 seconds, until it's completely melted and smooth. Next, add the flour, cocoa powder, salt, and vanilla extract. Stir the ingredients together until they're evenly combined. Pour the mixture into the prepared baking sheet and bake for 20 minutes or until the tops are golden brown. Remove the cookies from the oven and allow them to cool for 5 minutes before cutting them into squares.