2 1/2 pounds Yukon Gold potatoes, peeled, cubed and parboiled
1 large white onion, thinly sliced
Sea salt and black pepper
Melt the butter in a large frying pan over medium-high heat. Add the potatoes and onions, cover, and cook for 10 minutes. Flip the potatoes and cook until tender, another 5 minutes. Season with 1/2 teaspoon salt and 1/4 teaspoon black pepper.