Vaca Frita (Pan-Fried Beef)
This is one of my favorite Cuban foods. It reminds me of the countryside. I like this with black bean soup and rice and either platanos maduros (fried ripe plantains) or tostones (fried pressed plantains). You could also serve with black beans and rice cooked together. A spicy Cabernet Sauvignon would go well with this dish.
You can use extra-virgin olive oil instead of butter, if preferred.
You can prepare the meat and refrigerate overnight to allow it to absorb the marinade.