01 - Preheat oven to 250°F and line a large baking sheet with parchment paper.
02 - In a clean mixing bowl, beat egg whites and salt on medium speed until foamy.
03 - Add cream of tartar; increase mixer speed to high. Gradually add brown sugar, one tablespoon at a time, beating until stiff, glossy peaks form.
04 - Using two spoons, drop heaping tablespoons of meringue onto the prepared sheet, spacing them two inches apart. Shape each into a mound with the back of a spoon.
05 - Bake for one hour until crisp and dry. Turn off oven, crack the door, and let meringues cool inside for twenty minutes.
06 - Dust cooled meringues with powdered sugar to mimic fresh snow. Serve immediately or store in an airtight container.