Preheat oven to 350° F / 175° C. Line a half-sheet rimmed baking tray with a silicone mat.

In a small bowl, stir together pecans, maple syrup, and cinnamon.

Spread nuts on prepared tray, evenly covering the entire surface.

Roast for 10-12 minutes, stirring periodically, until caramelized and fragrant. Set aside to cool.

Store pecans in an airtight container at room temperature for up to 1 month.