In a large Dutch oven, heat 1 tablespoon olive oil over medium heat. Add the diced red onion and garlic. Cook 2–3 minutes until softened and fragrant.
1 yellow or red onion, 3 garlic cloves
Optional: Brown the beef (for deeper flavor):Add the beef stew meat and cook for 4–5 minutes, stirring occasionally, until the edges get a little color. (You can skip this step if you want to keep it simple.)
2 pounds beef stew meat
Add the chopped potatoes, dried cranberries, gravy mix, salt, pepper, and beef broth. Stir well to dissolve the gravy mix. Add the rosemary sprigs.
4 medium red potatoes, 1 yellow or red onion, 3 garlic cloves, ½ cup dried cranberries, 1 package of your favorite brown gravy mix, 1 tsp kosher or sea salt, ½ tsp fresh ground black pepper, 6 cups beef broth, 2 sprigs fresh rosemary
Bring the stew to a gentle boil, then reduce heat to low, cover, and simmer for 2 to 2 ½ hours. Stir occasionally, checking for tenderness. The stew is ready when the beef is fall-apart tender.
Thicken if you want:Mash a few potato chunks and stir them back in for a thicker broth.
Remove rosemary sprigs, stir well, and spoon into bowls.