Preheat oven to 275 degrees F. Line a rimmed baking sheet with parchment paper.Advertisement
Whisk egg white, water, sugar, salt, allspice, cloves, nutmeg, cinnamon and cayenne in a large bowl. Add pecans and stir to coat evenly. Spread in a single layer on the prepared pan.
Bake for 30 minutes. Rotate the pan from back to front and continue baking until the nuts are crispy and dry to the touch, about 30 minutes more. Let cool completely on the pan, about 20 minutes. Break apart before serving.
To make ahead: Store airtight at room temperature for up to 1 week.
Equipment: Parchment paper