I can't give you a recipe for the cabernet & blue cheese sauce cuz I just eyeball it as needed. At a guess, I'd say about three ounces of wine and a couple of tablespoons of the cheese.
Here, however, is a recipe for a butter-thickened made-to-order red wine sauce, from James Peterson's encyclopedic Sauces.
steak, lamb chops, pork chops or the like, enough for two servings
vegetable oil or redered fat, as needed
1/2 cup red wine
1/2 cup brown stock
1 1/2 oz butter, cut into cubes
salt and pepper to taste
Saute the meat in the oil or fat in a heavy-bottomed saute pan. When the meat is done, transfer it to a plate and discard the burned fat in the saute pan.
Pour the red wine into the saute pan and reduce it by half.
Add the brown stock and reduce until only 6 tablespoons remain.
Whisk in the butter and bring the sauce to a simmer for about 10 seconds.
If desired, adjust the thickness of the sauce by thinning with stock or thickening with more butter. Adjust the seasonings.