Ultimate Chocolate Chip Cookies

4 cups chocolate chips (divided)

2 2/3 cups flour

1 tsp. baking soda

1 tsp. salt

1 cup butter

1 cup brown sugar

1/2 cup sugar

1 tsp. vanilla

3 eggs

Melt-2 cups chocolate chips, stir until smooth. Combine flour, baking soda and salt in medium bowl. Beat butter, brown sugar, sugar and vanilla in large bowl. Add eggs one at a time, beating well after each addition. Beat in melted chocolate. Gradually beat in flour mixture. Stir in remaining morsels. Drop by rounded tablespoon onto ungreased baking sheets. Bake at 375 for 8-9 minutes, or in 15 1/2 by 10 1/2 (jelly roll) 25 minutes.