INGREDIENTS – 1 cup unsalted butter, cold and cubed – 3⁄4 cup dark brown sugar – 1⁄2 cup granulated sugar – 1 whole large egg – 1 egg yolk, room temperature – 3 tablespoon buttermilk – 1 tablespoon vanilla extract – 1⁄2 teaspoon no-taste red gel food coloring – 1 cup cake flour – 1 1⁄2 cups all-purpose flour – 1⁄2 cup unsweetened cocoa powder – 1 teaspoon kosher salt – 1 teaspoon baking soda – 1 teaspoon baking powder – 3 cups white chocolate chips or chopped white chocolate baking bars
–Prepare Cookie Dough: -In the bowl of a stand mixer with paddle attachment, add cubed butter, brown sugar and granulated sugar. Gradually increase speed to medium-high, mixing for about 3-4 minutes until well mixed and fluffy. Turn mixer to low and add egg and egg yolk then buttermilk and vanilla. Turn mixer off and carefully add red food coloring. Mix on medium for about 30 seconds until well incorporated, stopping to scrape down the sides. -With mixer off, add in both flours, cocoa powder, salt, baking soda and baking powder. Turn mixer on low and stir until just combined. Do not overmix. Stir in chocolate chips. Turn mixer off and knead the dough a bit with your hands to ensure chocolate chips are evenly incorporated. Using a large cookie scoop, portion dough and roll between your palms to make a smooth ball. Place about 2 inches apart on prepared baking sheets.