- 1/4 cup pine nuts
 - 1/4 cup butter
 - 1 bunch kale – stems removed, roughly chopped, and rinsed
 - 1 teaspoon distilled white vinegar
 - salt and ground black pepper to taste
 - 1/2 cup shredded Parmesan cheese
 
- Toast pine nuts in a skillet over low heat until golden brown and fragrant, about 5 minutes.
 - Melt butter in a large skillet over medium heat. Place kale in the melted butter and cook until tender, 10 minutes.
 - Toss cooked kale with vinegar in a serving bowl; season with salt and pepper. Sprinkle with Parmesan cheese to serve.