Forgotten Cookies

 Ingredients                                        Total Time: 5 hours 50 minutes
2 egg whites                                      Prep Time: 10 minutes
1 pinch of salt
2/3 cup white sugar
1 teaspoon vanilla extract

Directions
Preheat oven to 350 degrees F. Line cookie sheets with parchment paper or wax paper. In a large glass or metal mixing bowl, beat egg whites and salt until foamy. Gradually add sugar, continuing to beat egg whites until stiff peaks form. Fold in vanilla. Spoon onto prepared cookie sheets. Place the cookies into the preheated oven, shut the door and turn off the oven immediately.  Let the cookies sit in the preheated oven for 5 to 6 hours or overnight.