In a medium bowl, mix together the flour, salt, baking powder and sugar.
In a separate bowl, beat together the egg, milk, cream cheese, butter and vanilla extract. Slowly mix in the dry ingredients to the wet ingredients until fully incorporated.
Heat a large skillet over medium heat and spray with cooking spray. Scoop ¼ cup of batter for each pancake, and flip when bubbles are covering the surface of the pancake. Cook the other side until it is golden.