Salted Caramel Cookies - Crystal Sugar

Ingredients

• 3 cups all-purpose flour*
• 1/2 teaspoon salt
• 1/4 teaspoon baking soda
• 1/4 teaspoon cream of tartar
• 1/2 cup unsalted butter, softened
• 1/3 cup vegetable oil
• 2/3 cup Crystal Sugar Light Brown Sugar, packed
• 1/2 cup Crystal Sugar Confectioners Powdered Sugar
• 1 egg, room temperature
• 1 tablespoon milk
• 1 tablespoon vanilla
• 2 bags (10.5 oz) Werther’s Chewy Caramels, unwrapped
• 2 tablespoons milk
• 2 teaspoons salt
• Flaky sea salt, for garnish