Source: Crockpot Cooking

Beef Diablo Crockpot
This tasty beef recipe is easy to prepare and is always a big hit with everyone.
Serves: 4
Prep Time: 15 minutes
Cook Time: 10-12 hours


1 pound beef pot roast, boneless
3/4 teaspoon chili sauce
3 potatoes, peeled and sliced
3/4 teaspoon Worcestershire sauce
1/4 onion, sliced
1/4 teaspoon vinegar
1 1/2 teaspoons flour
1/4 teaspoon sugar
3/4 teaspoon mustard

Trim all excess fat from roast. Place potatoes and onion in bottom of crockpot. Make a smooth paste of flour, mustard, chili sauce, Worcestershire sauce, vinegar and sugar.
Spread over top of roast (cut roast in half, if necessary, to fit easily). Place roast in crockpot on top of potatoes and onions. Cover and cook on LOW setting for 10 to 12 hours (on HIGH setting for 5 to 6 hours).