Sift flour, baking soda and salt; set aside. Beat butter until creamy on low speed of mixer. Gradually add sugars and continue beating until light and fluffy. Add eggs, one at a time, beating well after each addition. Stir in flour mixture and vanilla.

Use a 1/4 cup measuring cup to form cookies. Pack dough into cup until level.

Drop onto baking sheets leaving 3 inches between cookies. Flatten dough slightly.

Bake on center rack of preheated 300°F oven for 20-25 minutes or until light brown or edges but slightly, soft in center. Cool for 3-5 minutes in pan and then transfer to wire racks to cool completely.

Makes about 2 dozen cookies.