Step 1 : In a small bowl, combine brown sugar, water, vanilla, and kosher salt, stirring to combine (don't worry that the sugar and salt won't all be dissolved). Set this at-the-ready, next to your stove, as this recipe goes really quickly.
Step 2 : In a medium-large saucepan over medium heat, toast pecans for 2-3 minutes, stirring occasionally to prevent burning. When you begin to smell a lovely, nutty aroma, they're done.