Homemade Demi-Glace

To call this classic sauce base “kitchen gold“ would be to overly flatter gold. Thanks to Squarespace for sponsoring this video! Go to for a free trial, and when you’re ready to launch, go to and add code “RAGUSEA“ at checkout to save 10% off your first purchase of a website or domain. This is an adaptation of a recipe by Chef John at Food Wishes. See his original vid and subscribe to his channel: Here’s my Christmas dinner recipe that uses this stuff: ****RECIPE**** 8-10 pounds chicken wings 5-7 pounds beef shank and/or oxtail 4 red onions, peeled and cut in half 2-4 tablespoons tomato paste oil water ice cubes Preheat oven to 400 F / 200 C convection (or 425 without convection). Oil a large roasting tray and put in the chicken wings. Oil another roasting tray or a rimmed baking sheet and put in the beef and onions. Roast both trays for about 45 minutes. Remove the trays, and flip the beef and onion