Good-Cooking - Candy Cookie Mix

Ingredients

• 1/2 cup granulated sugar
• 1/2 cup brown sugar, firmly packed
• 1 teaspoon powdered vanilla
• 1 teaspoon baking soda
• 2 cups all-purpose flour
• 1 cup unsalted butter or margarine, softened
• 1 large egg
• 1 package Candy Cookie Mix
• 1 cup candy bar chunks (Reese's peanut butter cups, Butterfinger bars, white or milk chocolate chunks)