Beat the egg white until light and foamy (not stiff peaks).
Combine the egg white and brown sugar in a heatproof bowl.
Place the bowl over a saucepan of gently simmering water (double-boiler method).
Stir constantly while heating until the sugar dissolves and the mixture thickens slightly.
Remove from heat.
Fold in the chopped pecans mixed with salt.
Drop by teaspoonfuls onto a buttered baking sheet, spacing about 1 inch apart.
Bake in a slow oven (300–325°F) until lightly set and just golden.
Bake time: about 15–20 minutes.
Yield: about 2 dozen small cookies