In a small bowl, combine the milk and vinegar and let sit for 10 minutes.
In a separate, larger bowl, combine all of the dry ingredients.
Add the egg, vanilla and butter to the milk and vinegar mixture and mix together.
Pour this mixture into the larger bowl with the dry ingredients and whisk until lumps are gone - but don't over mix.
Let the pancake batter sit for 10 minutes.
Heat an electric skillet to 375 degrees.
Spray with nonstick cooking spray.
Scoop ½ cup of the batter out of the bowl and pour onto the skillet.
Allow to cook until bubbles are visible on the top of the pancake.
Flip and brown the other side until cooked through.
Serve with syrup and fresh fruit if desired.