Preheat your oven to 350°F (175°C).
In a bowl, mix flour, baking soda, and salt; set aside.
In another bowl, cream together the softened butter, brown sugar, and granulated sugar until fluffy.
Beat in the eggs and vanilla extract until well combined.
Gradually add the dry ingredients to the wet mixture, stirring until just combined.
Fold in the chocolate chips or your chosen filling.
Scoop tablespoon-sized balls of dough and flatten them in your hand.
Place a teaspoon of filling in the center and wrap the dough around it, sealing it well.
Place the stuffed cookies on a baking sheet lined with parchment paper.
Bake for 10-12 minutes or until lightly golden. Let cool before dusting with powdered sugar.