INGREDIENTS
2 and 1/2 cups of all purpose flour 
1 tsp baking soda 
1/4 tsp salt 
200 gms unsalted butter (room temperature)
1 cup white sugar 
1/2 cup brown sugar 
1 egg (cold)
1 tsp vanilla extract
2 cups chocolate chips 
1 cup toasted pecans (optional)
METHOD
Preheat oven to 180 degrees c .
Mix 2 cups flour, baking soda and salt and set aside 
Cream together the butter and the sugars till light and fluffy , beat in the egg and add the vanilla .
Stir in the chocolate chips and the pecans 
Now add in the half cup of flour till u can handle the dough well , roll it into a log and wrap it in plastic and chill it for a few minutes .
now cut it into 2 inch disc ( you can make giant cookies or smaller ones whatever you prefer)
Put the discs onto a baking sheet and bake for 23 min for a softer , chewier cookie or 25 min for a harder crisper cookie .
Allow the cookies for a few min and place them on a wire rack for further cooling .  
Store cookies in an airtight container to last longer .
