Found on allrecipes.com by Suzanne

1 TB Olive Oil

1 Onion, sliced

2 Apples, cored and cut into bite-sized pieces

2 tsp Apple Cider Vinegar

1/8 tsp Sea Salt*

1/8 tsp Ground Black Pepper*

4 cups chopped Kale leaves

Heat olive oil in a large skillet over medium heat, cook and stir until onions are tender, about 4 minutes.  Add apples, vinegar, salt and pepper. Cover skillet and cook until apples are tender, about 3 minutes.  Add kale. Cover and cook until kale is tender, 4 to 5 minutes.  

*I think this is probably not enough salt or pepper, so I would definitely taste and adjust.