Preheat a medium size skillet over medium-high heat until hot.
Add the pecans and stirring constantly toast for one minute or until the pecans are lightly browned.
Add the maple syrup and a pinch of salt.
Continue to stir constantly until the pecans are toasted and the maple syrup has caramelized. They will have a rough sugar coating and they should look dry and not shiny. Be careful as they can burn very easily.
Remove to a parchment lined baking sheet and spread out evenly to cool. They will be soft until cooled completely.
Notes
The caramelized nuts will have a rough texture. If they cool and are sticky add them back to a hot pan and cook a bit more until the pecans have a rough texture (you can see it in the pictures).You can substitute walnuts for the pecans.Store in a glass jar or container up to a week. They are still edible after that but are a bit soft.