Pre-heat oven to 375
It's important to know that this is a 2 step cooking process. You will cook the tart shells at 375 until lightly brown (10-12 minutes) and then finish cooking them at 350 for approximately 10 minutes. Please be sure to give the oven time to cool down before putting tarts in for the 2nd round or they will be overcooked.
In a large bowl, place lightly whipped eggs, brown sugar, corn syrup and vanilla extract and mix together. If you're using a hand held mixer, mix on a low speed. You don't want to over mix the eggs.
Once your mixture is blended together, add in your toasted pecan pieces.
Spoon pecan mixture into cooked tart shells and then place a 1/2 pecan piece on each tart on top. Then you will bake for 10 minutes at 350.