Combine milk with vinegar in a medium bowl and set aside for 5 minutes to sour

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.e

Heat a large skillet over medium heat and coat until bubbles appear on the surface.

Flip with a spatula and cook until browned on the other side.