Place pecans in rectangular oven dish.
Toast in 250 Â°F oven 30 minutes.
Add butter over all by slicing or dotting it over nuts.
Stir once or twice, until pecans and butter have mixed well.
Nuts will be greasy at this point.
Sprinkle generously with salt.
Toast pecans 1 hour; salt again several times.
Stir as you go.
When done, butter will be completely absorbed and nuts crisp.