01 - Preheat waffle iron according to manufacturer's instructions.
02 - In a large bowl, whisk together flour, cocoa powder, sugar, baking powder, baking soda, and salt until well blended.
03 - In a separate bowl, beat eggs, then add buttermilk, melted butter, vanilla extract, and red food coloring. Mix until smooth and fully incorporated.
04 - Pour wet ingredients into dry ingredients and stir until just combined. Do not overmix; small lumps are acceptable.
05 - Lightly grease waffle iron with nonstick spray or small amount of melted butter.
06 - Pour batter into preheated waffle iron, using 1/2 to 2/3 cup per waffle. Cook for 3-5 minutes until crisp and completely cooked through.
07 - Serve waffles warm, topped with maple syrup, whipped cream, and fresh berries as desired.