Looking through some instructions my mom found in an antique cookie-maker and… WHAT? PET MILK?!?

According to the copy:

“Adds so much extra flavor because it’s whole milk concentrated to double richness… Wonderful for making sauces and desserts… Mix Pet Milk half and half with water for all cooking and baking uses.

Pet Milk makes every meal better… costs less generally than any other form of milk.”

As Will said, “it doesn’t look like there’s a whole cow in that can.”