Mrs. Field's Chocolate Chip Cookies

1 1/2 cup sugar
2 cups brown sugar
4 cubes butter
3 eggs
2 tsp. vanilla
6 cups flour
1 1/2 tsp. salt
1 1/2 tsp. baking soda
6 cups chocolate chips

Cream together sugars, butter, eggs and vanilla until fluffy. Add flour, salt, and baking soda and beat for 5 minutes. Add the chocolate chips and stir. Bake for 8-10 minutes at 350 degrees.

Variations:
Can add 2 cups of nuts with the chips or 1 1/2 cup oats and 2 cups nuts, or 3 cups raisins and 2 cups nuts.