hey ya'll i wanted to see if batter i stuck in the fridge a week ago would be ok to use in the am?
i didn't think so and i'm a stickler on new fresh ingredients but hate waste
Cake batter can be refrigerated for several days. If not needed for a longer period, freezing the batter is recommended.
Whatever works for you, it's all good.
Here are threads with more info on refrigerating/freezing cake batter:
(Includes the science of baking powder.)