Set your oven to 375°F and line a sheet pan with parchment paper.
In a large mixing bowl, combine the pecans, melted butter, maple syrup, brown sugar, vanilla, pumpkin pie spice, and salt. Toss until the pecans are fully coated.
Spread the coated pecans evenly on your prepared baking sheet. Roast for 7 minutes, give them a good stir, then roast for an additional 3–5 minutes, keeping a close eye toward the end so they don’t burn.
Once roasted, use a spatula to spread out the pecans so they don’t stick together as they cool.
Let cool completely before serving or storing. They’ll crisp up as they cool.
Store in an airtight container at room temperature for up to a week.