Something I learned a long time ago and thought I would share. If your like me, my family does not like buttermilk so it's not something that is kept in our house but it is an ingredient needed in lots of recipes.
You can make your own buttermilk by mixing milk with lemon juice or vinegar. I like lemon juice better.
1 c. milk ( any one will do skim, 2%,whole)
1 Tbs lemon juice
Mix these together and let set for 5 minutes, then use in any recipe that calls for buttermilk.