This is my family recipe for scalloped potatoes. I've been making this since I was a teenager (35 years now - wow time flies!). This is going to be the second recipe that uses canned soup and while I promise you that I am not one of those "open a can of soup" cooks - this recipe is worth making.
You need to preheat the oven to 350 degrees and use some non-stick spray on a casserole dish.
3 large (or 6 smaller) potatoes
can of mushroom soup
1/4 cup milk
cheddar cheese (about a cup and half grated)
Usually I peel the potatoes but today I'm using new crop potatoes with thin skins so I just scrubbed them and sliced them thinly (one cm thick). I chopped up about half a cup of sweet onion. You can also layer thinly sliced mushrooms if you like. Put the can of soup into a bowl or measuring cup - add about a quarter cup of milk and stir. You want a fairly thick sauce-like consistency - you might want to add a little bit more milk.
Spread a few tablespoons of soup over the bottom of the casserole dish and start by layering potatoes.
After the potatoes, add half of the onions - then salt and pepper and a sprinkle of dried herbs - I used savoury but parsley or dill or thyme would be nice You could also use fresh herbs but in a casserole like this that bakes for a long time, I find the dried herbs are just fine. Next another layer of potatoes, a few tablespoons of soup and half of the cheese. Another layer of potatoes, then onions and seasoning. Finally a last layer of potatoes, a few more tablespoons of soup and the rest of the cheese spread over the top. Don't worry if you don't use all the soup mixture. I only do when I use a big casserole.
I bake for half of the time with a lid on and then take it off for the end. Usually it takes 1 to 1 1/2 hours to cook through. I find that the newer the crop of potatoes - the longer it takes to bake. Stick a knife in to check periodically. When it goes in easily, you know the potatoes are tender and ready to serve. They can be held easily in the oven for a time. Give this recipe a try and I think it will become one of your family favourites too. It's a good dish for a potluck.