Sauteed Onions
Sweet, golden ribbons of onion gently cooked until soft and lightly caramelized. A simple, versatile side that adds savory depth to burgers, steaks, or roasted vegetables, ready in just 15 minutes with a handful of pantry staples.
For 4 servings
- prep · ~5 min
Slice the onions.
Peel the onions, cut them in half through the root, and slice thinly into half-moons.
- saute · ~1 min
Melt the butter and oil.
Place a large skillet over medium heat. Add the butter and olive oil, swirling until the butter melts and begins to foam.
TIPCombining butter and oil prevents the butter from burning while keeping its rich flavor. - saute · ~10 min
Cook the onions.
1.Add the sliced onions to the skillet and toss to coat with the fat.2.Spread them into an even layer and cook undisturbed for 2 minutes until edges start to soften.3.Stir and continue cooking, stirring every minute, for 8-10 minutes total until soft and lightly golden.TIPDon't rush the process. Low and slow gives you sweet, tender onions. High heat burns them. - saute · ~1 min
Season and finish.
Sprinkle with salt and black pepper. Stir in fresh thyme leaves if using. Cook 1 more minute, then remove from heat.
TIPSeason at the end to prevent drawing out too much moisture during cooking. - serve
Serve warm.
Transfer to a serving dish or pile directly onto burgers, steaks, or alongside roasted vegetables.
What to keep in mind.
6 tips from the recipe — small details that make a real difference to the final dish.
- 1Slice onions uniformly for even cooking — aim for 1/4-inch thick half-moons.
- 2Use a heavy-bottomed skillet to distribute heat and prevent scorching.
- 3Resist stirring too often; letting the onions sit builds deeper golden color.
- 4If the pan gets too dry, add a splash of water or broth instead of more fat.
- 5Cooked onions keep in the fridge for up to 5 days and reheat beautifully.
- 6For extra sweetness, add a pinch of sugar in the last 3 minutes of cooking.
Adapt it for your goals.
Balsamic-glazed
Add 1 tablespoon balsamic vinegar and 1 teaspoon brown sugar in the final 2 minutes for tangy-sweet, glossy onions perfect on sandwiches.
veganVegan
Replace butter with 1 additional tablespoon of olive oil or a vegan butter substitute to keep the dish fully plant-based.
low oilLow-oil
Use only 1 teaspoon of oil and deglaze with 2 tablespoons of vegetable broth every few minutes to reduce fat while still achieving tenderness.
herb infusedHerb-infused
Add 2 sprigs of rosemary or 1 bay leaf with the onions, then remove before serving, for a woodsy aromatic layer.
spicySpicy
Toss in 1/2 teaspoon red pepper flakes along with the salt for a gentle heat that pairs well with rich meats.
Why this is on our healthy list.
Rich in Quercetin
Onions are packed with quercetin, a powerful antioxidant that supports heart health and reduces inflammation.
Low-Calorie Flavor Boost
This dish provides deep savory flavor with minimal calories, making it an excellent way to enhance vegetables and proteins without heavy sauces.
Source of Prebiotic Fiber
Onions contain inulin, a prebiotic fiber that feeds beneficial gut bacteria and promotes digestive health.
Frequently asked questions
Bitterness usually comes from cooking over too-high heat or burning the butter. Keep the flame on medium and stir only when needed to prevent scorching.



