Finely chop the pecans with a knife, or pulsing them in a food processor. 2 1/2 cups pecans
Add the pecans, graham cracker crumbs, brown sugar, corn syrup, melted butter, vanilla extract, and salt to a large bowl and stir them together until you have a crumbly mixture. 1 cup graham cracker crumbs, 3/4 cup brown sugar, 6 TBS corn syrup , 1/3 cup unsalted butter, 1 tsp vanilla extract, 1/4 tsp salt
Scoop about 2 teaspoons of the mixture at a time, and carefully roll them into balls. Wash your hands with cold water often if the mixture starts to stick to your hands.
Place the balls on a cookie sheet lined with parchment paper. Repeat with additional mixture.
Place the pan in the freezer and chill for at least 30 minutes, up to 2 hours.
Add the chocolate chips to a microwave safe bowl and microwave in 20-30 second increments, stirring after each until you can stir the chocolate totally smooth. 2 cups chocolate chips
Dip one ball at a time into the melted chocolate. Use a fork to coat the ball completely in the melted chocolate. Using the same fork lift the ball out of the chocolate. Tap it on the side of the bowl to help extra chocolate drip back into the bowl.
Repeat with additional balls, placing them back onto the parchment paper.
Top with finely chopped pecans, or sprinkles if desired.
Let balls sit until the chocolate is firm.