Carne de Vaca Frita con Cebolla Recipe from Puerto Rico

Ingredients

• 2 lb (907 g) of club steak
• 6 onions , peeled and thinly sliced
• 6 to 8 tbsp of adobo seasoning
• 0.25 tsp of oregano
• 2 to 3 tbsp of vinegar
• 0.25 cup + 2 tbsp of olive oil
• 0.25 cup of beef broth or dry white cooking wine
• 1 tsp of salt (optional, as there should be enough salt in the adobo mixture)