Bistec Ranchero Recipe

Name: Bistec Ranchero Recipe
Ingredients: 2 tbsp oil; 2 guajillo chiles (seeded, deveined, and stemmed); 1/4 white onion (roughly diced ); 2 garlic cloves (smashed ); 1/2 tsp cumin seeds; 1/2 tsp dried Mexican oregano; 1 tbsp tomato paste; 1 lb tomatoes (roughly diced ); 2 cup beef stock (low sodium or water); 10 oz potatoes (small diced ); To taste salt; To taste ground black pepper; 1.5 lbs flank steak; To liking salt; To liking ground black pepper; 3 tbsp oil; 1/2 white onion (sliced ); 2 jalapeños (seeded and sliced ); 4 garlic cloves (finely minced ); 6 oz tomatoes (sliced ); To taste salt ((at the end))