Can you use buttermilk instead of milk in a jello cake?
You can use buttermilk instead of milk in a Jello cake, but it may turn out somewhat different. In a baked good, you can substitute milk for buttermilk if you add some baking soda and take away some baking powder. For example, instead of 1C milk, use 1C buttermilk, add 1/2tsp baking soda, and subtract 2tsp baking powder. ChaCha on!