Ingredients

* 3 pounds beef tenderloin, in 1 piece
* 4 Spanish onions, peeled, cut in halves
* 4 tablespoons butter
* 1/3 cup water
* Seasonings to taste

Instructions

1. Put all ingredients in a roasting pan.
2. Bake in moderate oven for about 40 minutes, Baste the onions more often than the beef.
3. Serve.