Beef Stroganoff

1 lb. beef sirloin steak, cut across the grain into bite size pieces
2 tbsp. all purpose flour
1 cup sour cream
2 tsp. beef bouillon granules, or beef base paste
½ cup water
2 tbsp. butter
1 ½ cups sliced fresh mushrooms, or 2 cans mushroom pieces and stems
½ cup chopped onion
1 clove minced garlic

Stir flour into sour cream. Stir beef bouillon into water, then add to sour cream mixture.
Melt butter in skillet over medium-high heat. Add half of beef sirloin, and brown. Remove meat, and add remaining meat, onion, garlic and mushrooms. Cook until meat is brown. Return all meat to skillet, and stir in sour cream mixture. Heat and stir until thickened and bubbly. Serve over cooked noodles.