Cut the beef into thin slices across the grain. Place in a 3 1/2 or 4 quart electric slow cooker. Add the mushrooms, scallions, onion, thyme, sherry, broth, dry mustard, and garlic pepper. Mix well.

Cover and cook on the low heat setting about 8 hours, or until the beef is tender, stirring once, if possible. Increase the heat setting to high.

Mix together the sour cream and flour until thoroughly blended. Stir a little of the hot liquid from the slow cooker into the sour cream mixture, then stir the sour cream mixture into the slow cooker, mixing well. Cover and cook on high 30 to 40 minutes, or until thickened slightly.

good! This recipe is soooo yummy, it tastes like you slaved and slaved over

the stove! Magnificient!