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Step-by-step
- 1
Prep Onions for Sautéing

Peel and slice onions to about 1/8-inch thick — thin enough to cook quickly, thick enough to avoid scorching. Yellow or Spanish onions work best. Limit to 2 large onions per 12-inch skillet to prevent steaming. Have your fat ready and keep a splash of water, broth, or wine nearby to deglaze if needed.
- 2
How to Sauté Onions

Heat a skillet over medium to medium-high heat. Add butter, oil, or a mix and let it shimmer. Add sliced onions in large handfuls, stirring for 1–2 minutes per batch until they begin to soften — this prevents overcrowding. Once all onions are in, season with a pinch of salt. Cook over medium heat, stirring every few minutes, for 8–12 minutes total until soft, translucent, and lightly golden. To speed up softening, add 1/4 to 1/2 cup water or broth and cover; steam wilts the onions in a few minutes. Remove the lid once liquid evaporates and continue cooking uncovered. If the pan looks dry, deglaze with a splash of water, broth, or wine, scraping up any browned bits. Don't crank the heat — high heat burns the outside before the onions cook through.
- 3
Doneness Cues & Serving

Onions are done at 8–12 minutes when soft, translucent, and lightly golden — tender but not mushy, with a mild, sweet flavor and no raw sharpness. If still firm or opaque, cook another 1–2 minutes and keep stirring. Don't pull them early; undercooked onions taste sharp. Serve immediately as a side, stir into dishes, or top meats, grain bowls, or salads. No free burner? Microwave in short increments to soften adequately.
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