Brown Sugar Butterscotch Cookies

Ingredients (11)

• 2 1/4 cups all-purpose flour
• 2 teaspoons baking soda
• 1 teaspoon cornstarch
• 1/2 teaspoon salt
• 1/4 teaspoon ground cinnamon
• 3/4 cup unsalted butter
• 1 1/4 cups dark brown sugar
• 1 large egg
• 1 teaspoon vanilla extract
• 1 cup butterscotch chips
• Extra dark brown sugar for rolling cookies