In a mixing bowl, combine flour, sugar, baking powder, baking soda, and salt.

In another bowl, whisk together buttermilk, egg, melted butter, food coloring, and vanilla.

Pour the wet ingredients into the dry ingredients and mix until just combined; do not overmix.

Let the batter rest for about 10 minutes.

Heat a griddle over medium heat and lightly grease it.

Pour 1/4 cup of batter for each pancake onto the griddle.

Cook until bubbles form on the surface, then flip and cook until golden brown.