Funfetti Cookies

Bahan-bahan (16 porsi)

• ½ cup butter (softened to room temperature)
• ¾ cup granulated sugar
• 1 large egg (at room temperature)
• 1 teaspoon vanilla extract
• 1 ½ cups all-purpose flour
• 1 teaspoon baking powder
• ½ teaspoon baking soda
• 1 teaspoon cream of tartar
• ½ cup sprinkles
• ⅓ cup white chocolate chips