Choc Chip Cookie-Salted Caramel Ice Cream Sandwich

Ingredients

• Double Chocolate Cookies:
• – 2 sticks (16 tablespoons) California unsalted butter
• – 2 cups packed light brown sugar
• – 1 large egg plus 1 large egg yolk
• – 1 teaspoon natural vanilla extract
• – 2 cups sifted pastry flour, or 1 3/4 cups sifted all-purpose flour
• – 1/4 cup sifted cake flour (sift before measuring)
• – 3/4 cup unsweetened cocoa powder
• – 1/2 teaspoon kosher salt
• – 1/2 teaspoon baking soda
• – 1 cup semisweet chocolate chips (we like Guittard or Ghirardelli)
• Salted Caramel Ice Cream:
• – 2 cups California milk
• – 2 cups California heavy cream
• – 8 large egg yolks
• – 1 1/4 cups granulated sugar
• – 1 tablespoon sea salt such as Maldon sea salt or fleur de sel