Mix together the dry ingredients in a medium mixing bowl. Set aside.
2 cups (250 grams) flour, 1 tablespoon + 1 teaspoon baking powder, 1/4 cup (50 grams) granulated sugar, 3/4 teaspoon salt
In a large mixing bowl, stir together the remaining ingredients.
2 cups (473 ml) milk, 1 1/2 tablespoons (21 grams) butter, 2 teaspoons apple cider vinegar, 2 teaspoons vanilla extract
Add the dry mix to the wet and stir just until no more flour streaks remain - there will be lumps and that is okay. Do not over mix!
Let the batter sit for 5 minutes. In the meantime, preheat a pan to medium heat. Sprinkle a drop of water on the pan - if it sizzles right away, the pan is hot enough and you can go to the next step.
Add some butter to the pan and pour in enough batter to form about a 4 or 5" pancake. If the batter seems very thin and spreads a lot, then pour in some batter so that it's about 4 or 5" wide, wait about 5 seconds, and pour more batter into the center of the pancake. If the pan is hot enough, the batter that you poured down first shouldn't spread so much and by pouring more batter on top, you're creating a taller pancake.
Once bubbles form and pop, check if the bottom is golden and if so, flip over.
Cook the second side for about another minute (or maybe a little less). This yields about six 5" pancakes.
Cool leftovers and refrigerate in an airtight container for up to 5 days.