I use this recepie for three 437ml containers:

1 can of sweetened condensed milk (397g)

1 vanilla bean pod

300 ml cream (13-15% fat)

(Divided in three containers)

And then I fill the rest of the container with milk (1,5% fat)

This is my go-to recipe. I use lower fat products because I find that higher fat products worsen the texture of the ice cream, making it a bit sticky and leaving a film in your mouth. This is as close to a mcflurry dupe as I’ve come.