Stuffing

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.

My favorite mix was:
Vanilla ice cream
Heavy Cream
Vanilla cake mix

It went down SO easy. I remember being floored with the calorie density and how easily it went down. Just start light with the cake mix and up the percentage until it's right. It was quite easy to funnel, and I didn't have a stop on my funnel either.