01 - Spread the flour evenly across a rimmed baking sheet and bake at 350°F for 5 minutes to eliminate any potential bacteria. Allow the flour to cool completely before proceeding.
02 - In a medium mixing bowl, whisk together the heat-treated flour, cocoa powder, and salt until evenly distributed.
03 - In a large bowl, beat the softened butter, granulated sugar, and brown sugar together using an electric mixer or whisk until the mixture is light and creamy, approximately 2 minutes.
04 - Pour in the milk, vanilla extract, and red food coloring to the butter mixture. Beat until the color is uniform and all liquids are fully incorporated.
05 - Gradually add the dry ingredients to the wet mixture, folding and mixing until just combined. Avoid overmixing to maintain a tender texture.
06 - Using a spatula, gently fold the white chocolate chips into the dough until evenly dispersed throughout.
07 - Enjoy the cookie dough immediately at room temperature, or transfer to an airtight container and refrigerate for up to 5 days.