In a large mixing bowl, whisk together the all-purpose flour, sugar, baking powder, baking soda, and salt until combined.

In a separate bowl, blend the buttermilk, eggs, melted butter, and vanilla extract.

Gradually pour the wet mixture into the dry ingredients, stirring gently until just mixed.

In another bowl, mix together the flour, cocoa powder, sugar, baking powder, baking soda, and salt for the red velvet batter.

Combine the buttermilk, egg, melted butter, vanilla, and red food coloring, then add to the dry mixture.

Preheat your waffle iron according to the manufacturer’s instructions.

Pour alternating small amounts of the classic and red velvet batters onto the waffle plates.

Using a toothpick or a skewer, gently swirl the two batters together to create a marbled effect.

Cook the waffles as per the manufacturer’s guidelines, typically around 4-5 minutes, or until golden brown.

Carefully remove the waffles from the iron and serve immediately while warm.

Top with whipped cream, fresh berries, or maple syrup.