Stuffing

I heard the success of people used or using heavy cream and cake mix shake. How do you necessarily 'drink' cake mix shake? Do you just add it in with heavy cream? I'm a lil confused. Help plz, I'm interested in adding it apart of my diet.

Chocolate brownie mismx is my go to.
Follow the directions in the package, leaving out the eggs.

Use heavy cream instead of milk. Add extra to the consistency you want.

I like to add a cup of Frisco and freeze it.
Or add oil and make a shake.

Thank you!