Step 1

Mix flour, baking soda and salt. Microwave chocolate and butter in large microwaveable bowl on HIGH 2 min.; stir until melted. Add sugar, egg and vanilla; mix well. Gradually add flour mixture, mixing well after each addition. Refrigerate 15 min.

Step 2

Heat oven to 375°F. Shape dough into 1-inch balls; divide into thirds. Flavor each third with one of the variations as listed in tips. Place, 2 inches apart, on baking sheets.

Step 3

Bake 8 to 10 min. or just until centers are set to the touch. Cool 1 min. Remove to wire racks; cool completely.