Preheat oven to 375°.
Combine maple syrup, Worcestershire, chile powder, cumin, salt, and pepper in a large bowl, stirring well. Add nuts to syrup mixture; toss well to coat. Arrange nuts in a single layer on a jelly-roll pan lined with parchment paper. Bake at 375° for 10 minutes or until lightly browned. Cool completely on pan.