Preheat the oven to 350°F (175°C).

In a mixing bowl, cream together the softened butter, sugar, and brown sugar until smooth.

Beat in the eggs one at a time, then stir in the vanilla.

In another bowl, combine the flour, cocoa powder, baking soda, and salt.

Gradually add the dry ingredients to the wet mixture until well combined.

In a separate bowl, beat the cream cheese and sugar until smooth.

Add the egg and vanilla, mixing until well combined.

Drop spoonfuls of cookie dough onto a baking sheet.

Place a small dollop of cream cheese filling on top of each cookie dough mound.

Bake in the preheated oven for 10-12 minutes.

Let cool before serving.