You can use apple cider as the liquid in recipes for an extra blast of flavor. Does wonders for apple cakes and muffins. You can even do that with other flavors, to create a mix that's different and delicious.
It wouldn't replace the oil, just the water for recipes. I wouldn't replace milk, either, if the recipe calls for it as that often combines with the other ingredients to get a certain texture. But I find lots of recipes that call for water and the cider is great for that. Apple juice works, too, but I think cider adds more flavor.
That's interesting. I recently had some (store bought) apple bread and it was quite good. I bet it would be excellent to use cider or juice for making this bread. I have a recipe I want to try that sounds similar to the bread I just bought.
Apple bread sounds good. Was it like a dessert loaf or sandwich bread. I'm sure you could use cider for any recipe that calls for apple juice or apple flavor. My sister-in-law uses apple juice for her baking instead of water and her cupcakes and cakes are always moist.