Walnut Chocolate Chip Cookies - Diamond Nuts

Ingredients

• 3/4 cup unsalted butter, room temperature
• 3/4 cup brown sugar
• 1/4 cup sugar
• 1 egg
• 1 tablespoon pure vanilla extract
• 2 teaspoons cornstarch
• 1 teaspoon baking soda
• 1 teaspoon salt
• 2 cups all-purpose flour
• 1 cup semi-sweet chocolate chips
• 1 cup Diamond of California® shelled walnut pieces, toasted