Combine oats, ½ cup pecans, cashew butter, maple syrup, 2 teaspoons cinnamon, vanilla and salt in a food processor. Process until fully combined and a thick paste forms, 1 to 2 minutes, stopping to scrape down the sides as needed.
Line a large rimmed baking sheet with parchment paper. Using a 1-tablespoon cookie scoop or measuring spoon, scoop 16 portions of the oat mixture onto the prepared baking sheet. With clean hands, roll each portion into a ball.
Finely chop the remaining 1 tablespoon pecans; transfer to a small bowl. Stir in caramel syrup and the remaining ⅛ teaspoon cinnamon. Spoon ¼ teaspoon of the caramel mixture over each energy ball.
