Preparation 1. Mix Knorr Demi Glace with water in the sauce pan, stir well then bring to boil with medium heat until the sauce thickens, set aside. 2. Heat olive oil in the pan then add garlic, onion, carrot, celery stir until fragrant then add ground beef, thyme leaves, bay leaves. Stir well until nice color. 3. Add Knorr Rich Pasta Sauce and prepared Demi Glace. Simmer over low heat until sauce is consistent.