How to Make Overnight Buttermilk
- you have to start with 1/2 cup fresh, store bought buttermilk and a quart (4 cups) of powdered milk. Use directions on powdered milk container to make 1 quart of milk.
- Combine fresh buttermilk and powdered milk mix in a pitcher or jar. Mix really well. Allow to stand at room temperature overnight, or for about 8 hours.
- The milk will have thickened up and cultured into regular buttermilk. Refrigerate to chill and use anywhere fresh buttermilk is called for. I always mixed in a pitcher.