The Foyot Sauce is a variation on the classic Béarnaise sauce made by adding meat glaze (glace de viande), a concentrated reduction of brown stock, to the basic Béarnaise. This gives the sauce a deep, meaty flavor that complements the tanginess of the Béarnaise.
Like Béarnaise, the Foyot Sauce is typically served with grilled steak, but you can serve it with anything grilled, even fish or vegetables.
In a small saucepan, briefly warm the meat glaze over low heat until it melts.
Stir the meat glaze into 1 pint of the Béarnaise sauce. Serve right away.