1In a large bowl, whisk together the all-purpose flour, sugar, baking powder, and salt.
In another bowl, mix the milk, maple syrup, eggs, and melted butter until well combined.
Pour the wet ingredients into the dry ingredients and stir until just combined. Be careful not to overmix.
Gently fold in the blueberries and add the red and blue food coloring to achieve a desired hue.
Heat a non-stick skillet or griddle over medium heat and lightly grease it with butter or oil.
Pour 1/4 cup of batter onto the skillet for each pancake.
Cook until bubbles form on the surface of the pancakes and the edges look set, about 2-3 minutes.
Flip the pancakes and cook for another 2-3 minutes, or until golden brown and cooked through.
Serve warm with additional maple syrup if desired.