You know, I make this in smaller batches....
2c milk (I use whole as well)
2 TBS starter (from store-bought or from your last batch)
Heat milk on the stove until near-boiling.
Let cool to 100-105 degrees (feels warm but not hot to touch)
Temper the starter with some of the warmed milk, whisk, add back to original milk.
(this is the part that's really different from her)
Place mixture in a container with lid in the oven (*NOT TURNED ON!) and leave over night. You can turn the oven light on if you like for a little heating action.
Done in the AM!