COMBINE:

1 c. sugar
1 c. brown sugar
1/2 c. butter
1/4 c. milk
2 eggs
1 tsp. vanilla

Beat until fluffy.

ADD:

3 c. flour
1 tsp. baking soda
1 tsp. cream of tartar
1/4 tsp. salt
1 lg. pkg. mini chocolate chips

Bake at 375 degrees for 8 to 10 minutes.