This is my mom’s secret chocolate chip cookie recipe, handed down from generation to generation, from back of bag to recipe card. Yep, I found out that this recipe is the same as the back of the Nestle Toll House Semi-Sweet Chocolate Chips bag. I think she doubled it, probably so it will go further, last longer. You can probably reduce the amount of sugar (my notes on the card suggest 1 cup and not 1.5 cups) and not notice much difference. I have also tried half butter, half shortening and it turned out awesome. My suggestion is to stick with the semi-sweet chips.
S. T. Fleming 
My family’s “secret” recipe too!
It sort of makes me wonder about other special family recipes. Hmmm!?!
This makes me laugh, and it reminds me of a story. My girlfriend C. used to make these incredible toffee squares. She got the recipe from a local bakery. I asked her for the recipe and she finally gave it to me but cautioned me not to share it because she had promised the bakery she would not divulge it. Well, when I read it over, it seemed really familiar. I went to my mother’s recipe cards, and there was Toffee Squares, and the recipe was word for word what C. gave to me. There was a note on the card that it was “Jeanette’s (my aunt) squares from the Betty Crocker cookbook” I googled it, and there was the recipe, also word for word!
I have since let the secret out of the bag!