Rich Onion Beef Soup

• 2 cups thinly sliced sweet onions
• 4 tablespoons butter
• 2 lbs cubed deli roast beef or 2 lbs leftover cubed cooked beef roast
• 2 (14 1/2 ounce) cans beef broth
• 4 tablespoons all-purpose flour
• 1/2 teaspoon ground mustard
• 1/2 teaspoon sugar
• 1/2 cup red wine
• 1 teaspoon browning sauce

1. In large saucepan cook onions in butter over medium-low heat 15 to 20 minutes or until tender and golden brown, stirring occasionally.
2. Add beef and broth.
3. Bring to a boil.
4. Reduce heat, cover and simmer 10 minutes.
5. In a small bowl, combine flour, mustard and sugar, stir in wine and browning sauce until smooth.
6. Stir into the soup.
7. Bring the soup to a boil and cook and stir for 1-2 minutes or until slightly thickened.

sweet onions, butter, deli roast beef, beef broth, allpurpose, ground mustard, sugar, red wine, browning sauce

Taken from www.food.com/recipe/rich-onion-beef-soup-112317 (may not work)