I haven't tried it yet but am going to soon.

Outback Steakhouse Rack of Lamb Cabernet Sauce
Posted by FootsieBear

1 1/3 cups cabernet
1/4 cup butter
1 1/2 Tbsp flour
1/4 cup fresh chopped parsley
6 cups beef broth
2 Tbsp lamb seasoning?
1 Tbsp garlic powder

In a bowl mix 1/3 cup of wine with flour, set aside, put remaining wine, broth, parsley, lamb seasoning and garlic powder in a saucce pan bring to gentle boil reduce abou t5 minuts, stir in flour mixture.

while you are reducing the liquid brown butter in another pan,(it says) don't just melt the butter, do not burn it. when you have finished reducing the sauce add butter and mix well, by this time your sauce should have a semi-thick look to it, when you are finished cooking this you should have 7 cups.