Buttermilk

Buttermilk is a cultured milk, meaning it has a bit of bacteria added to it, like yogurt. It's usually not something you have handy because most people don't drink it by itself. It's used for recipes like pancakes, bread and even salad dressings. It adds a tangy taste and a fuller texture to foods.

Buttermilk is also what I named my stick horse when I was a little kid! :)

Here's an easy shortcut if you need buttermilk but don't have any on hand.

Buttermilk can be made from milk and either vinegar or lemon juice.

BUTTERMILK

1 T. white vinegar or lemon juice
Enough milk to make 1 c.

Mix together both ingredients. Let sit for five minutes to let it start to curdle.

Using vinegar
Total cost: $0.25 per cup
Compared to: $0.35 per cup of store-bought
Nutrition facts:
     -Calories: 75
     -Fat: 0g
     -Protein: 8g
     -Carbohydrates: 11g
     -Sodium: 127mg
     -Fiber: 0g
     -Sugar: 11g

Using lemon juice
Total cost: $0.23 per cup 
Compared to: $0.35 per cup of store-bought
Nutrition facts:
     -Calories: 75
     -Fat: 0g
     -Protein: 8g
     -Carbohydrates: 11g
     -Sodium: 127mg
     -Fiber: 0g
     -Sugar: 11g