Begin by preheating your oven to 350°F (175°C). This ensures that your cookies bake evenly.
In a large mixing bowl, combine the softened butter, granulated sugar, and brown sugar. Using an electric mixer, beat the mixture on medium speed until it’s light and fluffy, about 2-3 minutes.
Add the eggs, one at a time, mixing well after each addition. Then, pour in the vanilla extract and mix until fully incorporated.
In another bowl, whisk together the all-purpose flour, cocoa powder, baking soda, baking powder, and salt. Gradually add this mixture to the wet ingredients, mixing just until combined. Be careful not to overmix!
Line your baking sheets with parchment paper to prevent sticking and make the cookies easy to remove after baking.
Using a cookie scoop or tablespoon, drop rounded balls of cookie dough onto the prepared baking sheets, leaving enough space between each to allow for spreading.
Bake in the preheated oven for 10-12 minutes, or until the edges look set but the centers are still soft. They will firm up as they cool.
While the cookies are baking, prepare the cream filling. In a mixing bowl, combine the marshmallow cream, confectioners sugar, vanilla extract, and milk. Mix until smooth and well combined.
Once the cookies have cooled completely, spread a generous dollop of the cream filling on the bottom of one cookie, then top with another cookie to create a sandwich. Repeat with the remaining cookies.
Your chocolate cookies with cream filling are now ready to be devoured! Enjoy them with a glass of milk or your favorite hot beverage.
