Preheat oven to 400˚.
Place Puff Pastry Cups on nonstick baking sheet or parchment paper. Cook 5 minutes short of package directions, 15 minutes.
While the pastry is cooking, in a medium bowl whisk together the Brown Sugar, Butter, Egg, Corn Syrup Vanilla and Cinnamon.
Stir in the pecans
Remove the pastry and push down the centers with the handle of a wooden spoon.
Reduce oven to 350˚.
Carefully spoon about a teaspoon of the pecan mixture into each pastry cup, the pecans should be sticking out of the top slightly.
Bake at 350˚ until cooked through and set, 9-12 minutes.
Remove and let cool before serving.
Store leftovers in an airtight container.