The Ultimate Caramelized Onion Gravy
vxdaTransform weeknight dinners or festive roasts into extraordinary meals with this unbelievably rich and savory caramelized onion gravy. Crafted with a medley of aromatic alliums and slow-cooked to perfection, its deep umami flavor and velvety texture will have everyone clamoring for more. Prepare to slather this incredible sauce over everything from mashed potatoes to succulent roasts!
Ingredients
- 4 pcs sweet onion — large
- 2 pcs leek — trimmed, white and light green parts only
- 4 pcs shallot
- 2 tbsp garlic — chopped
- 1 pinch fresh sage — or rosemary/thyme
- 250 ml red wine — dry, such as Cabernet Sauvignon or Shiraz
- 15 ml balsamic vinegar — aged 18 years, or regular with a pinch of sugar
- 15 ml worcestershire sauce
- 1 ½ l beef stock — hot (approx. 4 cups, adjust as needed)
- 60 g clarified butter
- 2 tbsp flour
- 1 pinch black pepper — to taste
- 1 pinch salt — to taste
- 1 tbsp bourbon — optional
- 30 g butter — cold
- 1 tbsp tomato paste — optional, for added depth
Instructions
- 1
Begin by preparing the sweet onions: slice them from pole to pole, then halve each onion. Place the cut side down and cut diagonally into short, thin strips. Repeat this process for all remaining onions.
- 2
In a large pot, melt the clarified butter over medium heat. Introduce the sliced sweet onions along with a pinch of salt. The salt aids in drawing out moisture. Sauté them patiently until they achieve a deep, golden-brown caramelization, ensuring they don't burn, as this step is vital for flavor development.
- 3
Next, prepare the leeks: trim off the root and the dark green tops (you can save the dark green portions for stock if desired). Halve the white and light green parts lengthwise and remove the tough core. Slice the leeks into thin julienne strips, then halve these strips to shorten them. If they appear sandy, wash them thoroughly.
- 4
For the shallots, first remove the root and top, then peel them. If large, cut them in half lengthwise. Slice into delicate half-moon shapes.
- 5
Once the sweet onions are beautifully caramelized, add the prepared leeks and shallots to the pot. Allow them to sweat gently for a few minutes until they begin to soften.
- 6
Stir in the chopped garlic and fresh sage (or other complementary herbs like rosemary or thyme). Cook for roughly 30 seconds to 1 minute, until the garlic becomes fragrant, taking care not to let it burn.
- 7
Deglaze the pot by pouring in the Worcestershire sauce, balsamic vinegar, and red wine. Using a wooden spoon, scrape the bottom of the pot to release any flavorful browned bits into the liquid. Bring the mixture to a simmer and gently reduce the liquid by half.
- 8
Add the beef stock to the pot. Bear in mind that cold stock might slightly prolong the cooking time. If your stock seems to lack depth, stir in 1-2 tablespoons of tomato paste. For additional thickness, a pre-made roux can be incorporated at this stage.
- 9
If you're not using a pre-made roux for thickening, you can use flour: position a fine-mesh strainer over the pot, add 1-2 tablespoons of flour to the strainer, and whisk it directly into the simmering sauce. This method effectively prevents lumps. Continue to simmer the sauce for at least 10 minutes to cook out any raw flour taste and allow it to thicken.
- 10
Continue to simmer the gravy over very low heat for at least 30 minutes. Stir occasionally with a spatula to clean the pot's sides and a wooden spoon to scrape the bottom, preventing sticking and burning. If the gravy becomes too thick, adjust its consistency by adding a little more stock.
- 11
Season the gravy with freshly ground black pepper and salt to your taste. For an extra layer of depth, an optional dash of bourbon is highly recommended.
- 12
Finally, remove the pot from the heat and stir in the cold butter until it has melted completely and emulsified into the gravy. This last step gives the gravy a beautiful sheen and an irresistible richness.