Chop 1 large yellow onion and 4 cloves of garlic.
Melt 1 tablespoon of butter in a deep skillet and sauté chopped onion and garlic until onions are translucent. Remove from skillet and set aside in a bowl for a later step.
Add ground beef to the same skillet, and break up into small pieces. Season with a large pinch of salt and pepper.
When browned, remove grease from the skillet.
Add onions and garlic back to the skillet. Add 2 cups of beef broth (better than bouillon), 2 tablespoons of Worchester sauce, and 1/2 teaspoon of kosher salt. Stir and bring to a boil.
When boiling, turn the heat down to low, cover, and let simmer for 10 minutes.
Add 1 can of Campbell's Cream of Mushroom soup and 2 cups of sour cream. Stir well to combine.
Add a cornstarch slurry (1 tablespoon cornstarch and 1 tablespoon cold water). Stir and keep on low heat until thickened (about 5 minutes).
Serve over egg noodles. Enjoy!