Cube Steak Stroganoff

1 medium white onion, chopped
4 tablespoons butter
1/4 pound sliced mushrooms
1 1/2 pounds cube steak, cut in 1 inch strips
1 cup beef broth
2 tablespoons lemon juice
1 cup sour cream

Saute the onion in 1 tablespoon butter until golden.

Remove from pan, add another tablespoon butter and cook the mushrooms, about 5 minutes. Remove from pan.

Flour the steak strips lightly and brown them in the remaining 2 tablespoons butter.

Return onions and mushrooms back into pan; add beef broth and lemon juice.

Simmer for 15 minutes, add the sour cream and heat gently.