I have read all of Laura Ingalls Wilder's books many times. Most of Farmer Boy, about her husband's childhood, centers around food. One time, I decided to try to make pan-fried apples & onions. Turns out, it's really good. This side goes with any meat. Or, you could serve it as a kind of cooked salad. Maybe even as a brunch go-with. The sweetness you get with caramelized onions is enhanced by the apple juices. For a more savory zing, cook them in bacon drippings instead of butter.
2 medium yellow onions
3 apples about the same size as the onions. I would use a semi-tart variety like Gala or Fuji
2 Tb butter
1. Slice onions into rings. Core apples and cut in half. Cut into thin slices.
2. Melt butter in a large frying pan on medium heat. Cook onions until soft, about 5 minutes. Add apples and continue to cook until tender, at least 10 minutes. Serve hot