How to make
Fry the flour with the butter, then dilute the roux with broth, add the pre-fried with onions and other vegetables tomato sauce, then add the sugar, citric acid, allspice, salt and cook for 25 to 30 minutes. Strain the sauce, bring to a boil and temper with more butter.
Serve the sauce with certain meat dishes. Without the butter roux, you can use it as a base for other sauces with spices, wine and other products.