Onion Soup - cooking recipe

Ingredients

1 c. finely sliced onion
4 Tbsp. butter
2 cans beef consomme
2 cans water
2 Tbsp. horseradish
1 tsp. mustard
Parmesan cheese
toast

Preparation

Cook onion in butter until soft and yellow.
Add the consomme, water, horseradish and mustard.
Simmer 20 minutes.
Serve with a thick slice of toast on top.
Sprinkle with Parmesan cheese.