01 - Preheat your waffle iron according to the manufacturer's instructions until ready for use.
02 - In a large bowl, whisk together the flour, cocoa powder, sugar, baking powder, baking soda, and salt until uniformly blended.
03 - In a separate bowl, whisk the buttermilk, eggs, melted butter, vanilla extract, and red food coloring until fully incorporated and smooth.
04 - Pour the wet ingredients into the dry ingredients and stir gently until just combined. Avoid overmixing; small lumps are acceptable.
05 - Lightly grease the preheated waffle iron with nonstick cooking spray or a small amount of melted butter.
06 - Spoon approximately 1/2 to 3/4 cup of batter onto the center of the waffle iron, adjusting based on your iron's capacity.
07 - Close the lid and cook for 3 to 5 minutes, or until the waffles are crisp and cooked through according to your iron's indicator.
08 - Repeat the cooking process with the remaining batter, greasing the iron as needed between waffles.
09 - Serve the waffles immediately with a pat of butter and a generous drizzle of warm maple syrup.