Having baked 200 to 300 batches of these in the last couple of years (I baked them for a social table at church); I've modified the recipe again. Because I'm an engineer, I've tried to describe the process is such a way as to make it repeatable, where anyone can duplicate these.
Preheat oven to 325 degrees F.
1 cup white sugar
1 1/2 cups light brown sugar (300 grams)
1 3/4 teaspoons baking powder
2 teaspoons real vanilla
2 sticks (8 ounces) real butter
3 1/2 cups white flour (420 grams)
6 ounces semi-sweet chocolate chips
11 1/2 ounces Ghirardelli milk chocolate chips
2 large eggs
Soften the two sticks of butter (8 ounces) in the microwave oven.