pogofish
Testicle Hairstyle
Maybe it's different down South in the US, but in the NE and Canada it's simply half whole milk, half single cream for a ~10% milkfat result. Which tastes very nice in coffee, but revolting in tea.
Very similar to how coffee used to be (sometimes still is) served in Munich/Bavaria and the Netherlands, although industro-creamer has made big inroads over "Koffeemelk/Kaffeemilch" these days. Traditionally made out of skimmed milk with cream added - again, powder/liquid/flavoured forms are made at @4% fat and sealed packs/bottles tend to keep very well, without the use of the sort of components that should never be anywhere near milk/coffee!
A very small amount of evaporated milk can make a very effective "creamer" - not a lot or its taste overpowers the coffee. My first and sometimes second coffee of the day is often one of these - a small/strong white. A small tin of evaporated milk keeps about a week if you decant it into a pre-sterilised bottle and keep it in the fridge.