Preheat the oven to 350°F (175°C). Line a baking sheet with parchment paper.

In a mixing bowl, cream together the softened butter, granulated sugar, and brown sugar until light and fluffy.

Add the eggs one at a time, mixing well after each addition. Stir in the vanilla extract.

In a separate bowl, whisk together the flour, baking soda, and salt. Gradually add the dry ingredients to the wet ingredients, mixing until just combined.

In another bowl, mix together the creamy peanut butter and confectioners' sugar until smooth.

Drop spoonfuls of the cookie dough onto the prepared baking sheet, leaving space between each cookie.

Spoon small amounts of the peanut butter mixture on top of each cookie dough mound.

Use a toothpick or a knife to swirl the peanut butter into the cookie dough.

Bake in the preheated oven for 10-12 minutes or until the edges are golden brown.

Allow cookies to cool on the baking sheet for a few minutes before transferring to a wire rack to cool completely.