Sparkling Butter Toffee Cookies

Bahan-bahan (36 porsi)

• 1 cup granulated white sugar
• ¾ cup (1½ sticks) salted butter, (at room temperature)
• 1 large egg
• 1 teaspoon vanilla extract
• 2 cups all purpose flour
• 1½ teaspoons baking powder
• ¼ teaspoon baking soda
• ½ cup toffee bits ((or more, as desired))
• additional sugar, for rolling ((chunky sparkling white sugar works best))