Mastering the Sauce Reduction
Reductions turn thin, watery liquids into liquids with enough body to coat the back of a spoon. It is less about following a rigid recipe and more about reading the change in the surface of the pan.
Width matters more than depth.
Use a wide, shallow pan to increase the surface area; the more liquid exposed to air, the faster the evaporation.
- Wide stainless steel skillet or sauté pan
- Silicone spatula
- Fine-mesh strainer
What goes in.
- 2 cupshomemade stock or dry wine
- 1 tbspcold unsalted butter (optional)
Coating the spoon
Dip a metal spoon into your sauce and run your finger through the liquid on the back. If the line stays clean and the sauce doesn't run back into it, the reduction is finished.
The method.
Bring the liquid to a simmer
Pour your stock or wine into a cold pan and bring it to a gentle simmer over medium-high heat. Do not boil it violently, or you risk clouding the flavor.
Monitor the evaporation
Watch the bubbles. As the liquid reduces, the bubbles will slow down and become larger, glossier, and more frequent toward the edges of the pan.
Skim the surface
Use a spoon to lift away any foam or impurities that rise to the surface throughout the reduction process.
Finish with fat
Once the liquid reaches the desired consistency, remove from heat. Whisk in a small knob of cold butter to add shine and round out the sharp edges.
Other turns to take.
Balsamic Reduction
Reduce balsamic vinegar by half until it clings to the spoon like heavy syrup, useful for finishing roasted vegetables.
Pan Sauce
Deglaze a pan used to sear meat with wine or stock, scraping the browned bits from the bottom while reducing.
When it doesn't go to plan.
Always start with an unseasoned liquid; as the water evaporates, the salt content increases, and a seasoned base will turn bitter.
Keep the heat steady; if the edges start to darken too quickly, pull the pan off the burner for thirty seconds to regulate.
Strain your finished reduction through a fine-mesh sieve if you added herbs or aromatics during the process.
The ones that keep coming up.
How do I know if it is reduced enough?
The liquid should look thick and glossy rather than thin and watery. When you stir, the sauce should leave a visible trail on the bottom of the pan for a split second.
Why does my reduction taste salty?
You likely started with a store-bought stock that was already salted. Use unsalted, homemade stock whenever possible to maintain control over the final concentration.
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