Mix cream cheese and butter until smooth.
Add flour and salt gradually.
Mix until dough forms.
Chill for 30 minutes.
Roll dough into small balls.
Press each ball into muffin cups.
Make a small cup shape.
Create thin walls and bottom.
Mix brown sugar and melted butter.
Add eggs and vanilla extract.
Stir in chopped pecans gently.
Mix until everything combines well.
Spoon filling into each cup.
Fill them three-quarters full only.
Bake at 350°F for 25 minutes.
Let them cool completely before removing.