Salted White Chocolate Macadamia Nut Cookies

Bahan-bahan (4 porsi)

• 1/2 cup butter, softened to room temperature
• 1/2 cup brown sugar, packed
• 1/3 cup granulated sugar
• 1 egg
• 2 teaspoons vanilla extract
• 1 3/4 cups all-purpose flour
• 2 teaspoons cornstarch
• 1 teaspoon baking soda
• 1/4 teaspoon salt
• 1/2 cup roughly-chopped macadamia nuts
• 1/2 cup white chocolate chips
• Flaky sea salt, such as Maldon