I used to use buttermilk powder a lot; it’s very useful when you can’t reliably find the ‘real thing’ in the store. I mostly used it in biscuit-baking.
I’ve never tried to grow cilantro; but I seem to remember that it’s supposed to be very tolerant of cold, and can stay in many gardens almost year round if covered up a little in Winter. Maybe yours is too hot???
-JT
What a sec...are you suggesting that it’s TOO HOT in Mexico to grow cilantro?