Get Ready: Preheat your oven to 350°F (175°C). Line your baking sheets with parchment paper for easy cleanup.
Combine Dry Goodies: In a medium bowl, simply whisk together the flour, cocoa powder, baking soda, and salt until they're well mixed.
Cream the Wet Base: In a large bowl, beat together the softened butter, granulated sugar, and brown sugar until the mixture is wonderfully light and fluffy.
Add Eggs & Vanilla: Incorporate the eggs one at a time, beating well after each, then stir in the vanilla extract.
Mix the Red Hues: In a separate small bowl, whisk together the buttermilk, white vinegar, and vibrant red food coloring until fully combined.
Gentle Blend: Gradually add the colorful wet mixture to your dry ingredients, mixing just until everything comes together. Be careful not to overmix!
Fold in Chips (Optional): If you're using white chocolate chips, gently fold them into the dough now.
Chill Time: Cover the dough and let it chill in the refrigerator for at least 30 minutes. This helps the cookies bake up perfectly!
Shape & Bake: Roll the dough into small, 1-inch balls and arrange them on your prepared baking sheets.
Golden Finish: Bake for 8-10 minutes. The cookies are ready when their edges look set but the centers are still wonderfully soft.
Cool Down: Let the cookies rest on the baking sheets for a few minutes before moving them to a wire rack to cool completely. Enjoy these delightful treats!