Christmas Tamales

Name: Christmas Tamales
Ingredients: 8 ounces dried guajillo chilies; 8 ounces dried ancho chilies; 32 ounces chicken stock; 2 lbs masa harina flour, mix (MaSeCa Tamale Mix); 1 quart corn oil; 1 cup fresh cilantro (washed in a colander); 2 white onions, chopped; 2 lbs ground beef; 5 tablespoons ground cumin; 5 tablespoons dried oregano; 5 tablespoons dried onion; 5 tablespoons dried ground cayenne; 5 tablespoons white pepper; 16 ounces tomatoes & chili peppers (Ro-Tel); 8 ounces dried corn husks