From the Gourmet International Pancakes and Waffles Cookbook circa 1970. My mom gave me this book when I first moved out on my own. I just recently tried the buttermilk pancake recipe and I can say that we haven't used another pancake recipe since. Light, fluffy, and absolutely delicious. Before this my family preferred a box mix (yuck!) so I am so glad I found this very simple recipe. This feeds my VERY hungry family of 3 sufficiently so I would definitely double if you have a larger family.