How to Make It
Preheat oven to 300°F with racks in upper and lower thirds. Whisk egg whites in a large bowl until foamy. Whisk in barbecue sauce, sugar, salt, and pepper until smooth. Add pecans; stir to coat. Divide nuts between 2 rimmed baking sheets lined with parchment paper and spread in an even layer. Roast until pecans appear dry, about 40 minutes, stirring once halfway through cook time. Let cool on baking sheets for 30 minutes.