01 - Preheat waffle iron according to manufacturer's instructions until ready for use.
02 - Whisk together flour, cocoa powder, sugar, baking powder, baking soda, and salt in a large mixing bowl until thoroughly blended.
03 - In a separate bowl, whisk buttermilk, eggs, melted butter, vanilla extract, and red food coloring until completely smooth and uniform in color.
04 - Pour wet ingredients into dry ingredients and fold gently until just combined. Stop mixing when small lumps remain—avoid overworking the batter.
05 - Lightly coat waffle iron plates with nonstick cooking spray or brush with a small amount of melted butter.
06 - Pour approximately 1/2 to 3/4 cup batter onto center of hot waffle iron. Close lid and cook for 3–5 minutes until waffles are golden brown and crisp.
07 - Repeat cooking process with remaining batter, greasing iron between waffles as needed.
08 - Transfer waffles to plates, top with butter pats while hot, and drizzle generously with warmed maple syrup.