No, you can substitute buttermilk for milk but not for baking powder.
Yes, you can use buttermilk with baking powder.
Yes
Stupid question = Stupid answer
You can most definitely use buttermilk for scalloped potatoes. It will give them a nice flavor. I suggest adding some fresh Rosemary to complement the twang of the buttermilk.
CCan I use baking powder in banana bread
A variety of baking supplies - called "leaveners" - make bread rise. Depending on the kind of bread and the type of recipe, one might use yeast, baking soda, or baking powder.
smell
When you use yeast it takes longer and doesn't get as big, cause you let yeast bread rise.More information:The question is not clear, because in common English usage, "bread baking" assumes the use of yeast. Breads that do not use yeast are called "quick breads" and use baking powder or baking soda for leavening.
Yes or water if you add a little extra fat.
No not really, cause if you don't use den it ain't no bread.
A number of factors could cause banana bread to fall, but the most likely is uneven heat in the oven. Use a baking thermometer to determine whether the oven is holding an even temperature for at least an hour. Other problems could be forgetting or inaccurate measuring of baking powder/baking soda, or failure to use buttermilk, lemon juice, or other acid if called for.