Beat butter with electric mixer until fluffy. Beat in egg and vanilla until blended. Mix in Equal® and brown sugar until combined. Mix combined flour, baking soda and salt. Stir into butter mixture until well blended. Stir in chocolate chips. Drop dough by rounded t. onto ungreased baking sheet. Bake in preheated 350° F oven 8 to 10 minutes or until light golden color. Remove from baking sheet and cool completely on wire rack. Store in airtight containers at room temperature. Makes 2 dozen. May substitute 8 packets Equal sweetener. Nutrition information per serving: calories 68, protein 1 g, carbohydrate 8 g, fat 4 g, cholesterol 16 mg, sodium 55 mg, Food Exchanges: ½ starch, 1 fat.