I tried the best chocolate chip cookie of my life tonight. And I got the recipe from my bro-in-law.
1 c. butter
1 1/2 c. brown sugar
2 tsp. vanilla
2 1/2 - 2 3/4 c. flour (start with 2 1/2 cups then add another 1/4 cup at the end if it seems too thin)
1 tsp. baking soda
1 tsp salt
Cream wet ingredients. Add dry ingredients. Add more flour as needed.
Bake at 325 degrees for 13 minutes and 30 seconds (or adjust time based on your own oven -- take them out when they're slightly underdone and let them finish baking on the pan as they are cooling).