Do you mash up actual pudding into soft ice cream and refreeze, or did you develop the recipe from scratch? I suspect the latter. :-)

You suspect right. Not from scratch, though. I adopted bits from different recipes (though I can't remember where I found the originals). Here is my actual recipe.

This year's didn't have quite the right ratio of alcohol to the rest of the ingredients; it didn't freeze enough. Still tasted good, though.