Unsure about a buttermilk substitute? Finally gathered the nerve to make your girlfriend buttermilk biscuits in bed but alas, you have no buttermilk on hand? No problemo! You're likely to have the ingredients for at least one of the buttermilk substitutes mentioned here on hand. You have enough to worry about with the measuring out the ingredients and making the biscuits edible part of the equation. All of the substitutions recommended can be used as indicated in recipes.
If you tend to have yogurt on hand, an easy solution to your buttermilk problem is yogurt and milk. Thoroughly miix three parts natural yogurt to one part milk with a whisk(you know, the white stuff you pour over your cereal, but make sure there aren't any chunks first).
Another easy buttermlk substitute for households that cook or bartend with lemon is mixing said fruit juice with milk. Blend 1 cup milk with one tablespoon lemon juice or vinegar (plain white vinegar is best, balsamic and red wine vinegars are too expensive to use in buttermilk substitutes), let stand for five minutes and mix again before using.
Create an inexpensive buttermilk substitute almost anywhere with a glass jar, powdered milk and vinegar. On the off chance that you camp or have some super-man-against-nature use for powdered milk and keep the stuff (gag) around, mix 2 parts powdered milk to 3 parts milk, add 1 teaspoon vinegar. Let stand for 10 minutes, For easy mixing, use a glass jar with a tight fitting jar. Add ingredients, stir a little, fasten on the lid tightly and shake until well mixed.
Of the three buttermilk substitutes described here the one the yogurt that keeps the best is the mixture of milk and yogurt, as it basically just turns itself back into yogurt. Plus, it's great in smoothies and shakes. Of course if you're staying out in the wilderness somewhere with no refrigeration and absolutely must have buttermilk pancakes (but not from a mix, Einstein?), the powdered mix and vinegar is a convenient solution.