Melt the butter in a spider and when it begins to brown stir into it the flour, let it cook until a very dark brown, but be careful not to let it burn, then add enough rich vegetable stock to make a thick cream-like sauce. Have ready some olives, that have been boiled a few minutes in water and cut from the stones, add these to the sauce, season with pepper and salt to taste, bring to the boiling point and serve.
The Golden Age Cook Book (1898).