Hi All,
Was browsing recipies and came accross Mexican Chocolate Cake which sounds yum! Recipe asks for 1/2 cup sour milk, so err should I just leave a 1/2 cup of milk out of the fridge for day untill it's sour 
or is this something you buy specially??
Shola
XXX
P.S If you buy it specially can it be substituted? as I know I've never seen it here!
Hiyas Shola,
The recipe is referring to what's often used as a substitute for buttermilk:
To a cup of milk, add 1 tablespoon of white vinegar or lemon juice - mix and let sit for about 10 minutes. Then use. The milk will thicken up a little and look a little curdled.
It imitates many of the qualities of buttermilk, but it's a little more convenient for those of us who don't often have buttermilk on hand.
Hello!
Here are a couple of sites that give directions on how to sour milk. I have used the same method for substituting for buttermilk and it comes out perfect! I usually use vinegar but you can use either the lemon juice or the vinegar. Hope that helps! Good luck with your recipe!
Cakegirl20
http://everything2.com/index.pl?node_id=1676721
http://food.oregonstate.edu/faq/dairy/milk2.html
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