Homemade Ranchero Sauce

Name: Homemade Ranchero Sauce
Ingredients: 1 medium sweet onion (diced); 3 dried Guajillo peppers (soaked in hot water, seeded and diced); 1 serrano pepper (chopped); 1 medium jalapeno pepper (chopped); 3 clove garlic (minced); 1 Tbsp vegetable oil; 1 28 oz can pureed tomatoes; 1 16 oz can fire roasted tomatoes or diced tomatoes and green chilies; 1 16 oz chicken stock or chicken broth; 3 Tbsp chopped cilantro; 1 Tbsp cumin; 1 Tbsp dark chili powder; 1 1/2 tsp seasoned salt [more or less to taste]; 1 tsp ancho chili powder or smoked paprika; 1 tsp Mexican oregano; 1/2 tsp black pepper; 1 lime (juiced)