Fluffy pancakes

From this recipe

Ingredients

• ¾ cup milk
• 2 tablespoons white vinegar
• 1 cup all-purpose flour
• 2 tablespoons white sugar
• 1 teaspoon baking powder
• ½ teaspoon baking soda
• ½ teaspoon salt
• 1 egg
• 2 tablespoons butter, melted
• cooking spray

Directions

1. Combine milk with vinegar in a medium bowl and set aside for 5 minutes to "sour".
2. Combine flour, sugar, baking powder, baking soda, and salt in a large mixing bowl. Whisk egg and butter into "soured" milk. Pour the flour mixture into the wet ingredients and whisk until lumps are gone.
3. Heat a large skillet over medium heat, and coat with cooking spray. Pour 1/4 cupfuls of batter onto the skillet, and cook until bubbles appear on the surface. Flip with a spatula, and cook until browned on the other side.