Crockpot Beef Stroganoff

This is a great crockpot recipe from Mel's Kitchen Cafe. I love stroganoff and since this stroganoff is made in the crockpot it is 10 times easier the stove-top version. The beef is fall apart tender and the sauce is so yummy and favorfull (without relying on cream of mushroom soup like so many crockpot recipes). I know I'll make this one again.

Crockpot Beef Stroganoff

2-3 lbs beef stew meat (I cut a 3 lb chuck roast into cubes)
1 teaspoon salt
1/4 teaspoon pepper
1 medium onion, chopped (about 1 cup)
1/4 teaspoon garlic salt
1 tablespoon worcestershire sauce
1 1/2 cups beef broth or stock
1 tablespoon ketchup
1/3 cup flour
7 tablespoons water or beef broth
8 oz sliced mushrooms (I used baby bella)
1/2 cup sour cream

Combine stew meat, salt, pepper, and onion in crockpot. In a bowl combine garlic salt, worcestershire sauce, beef broth, and ketchup. Pour over the meat. Cook on low for 7-9 hours (or 4-5 hours on high). About 30 minutes before serving, combine flour and water or beef broth in a bowl, whisking vigorously to mix well. Pour the flour mixture into the crockpot, stirring well to avoid lumps. Add the mushrooms and stir. Finish cooking on high for 30 minutes. Turn off crockpot and stir in sour cream. Serve over noodles or rice.