Classic quick and easy chocolate whoopie pie recipe with creamy marshmallow filling. Soft, moist, made with simple ingredients. Starts off with cake mix.
Add cake mix and mix until just combined.
Use a small ice cream scooper to scoop out small portions of the dough onto a cookie tray, lined with parchment paper. You should be able to make about 24 small cookies.
Chill in the freezer for 20 minutes.
Bake at 350 degrees for about 10 minutes or until cookies are slightly cracked on top and firm around the edges.
Allow the cookies to cool down completely.
While the cookies are cooling, prepare the marshmallow filling.
Attach a large round tip to a piping bag and fill it with this frosting.
Flip half the cookies and top them with a swirl of frosting. Place another cookie on top and press gently to secure the two cookies together into a sandwich. Enjoy!