Ingredients
Equipment
Method
Cooking Steps
- Slice the onions thinly into half-moons.
- In a large skillet over medium heat, melt the butter with olive oil.
- Add the sliced onions, sprinkle with salt, and stir to coat.
- Cook slowly for about 30-40 minutes, stirring occasionally until deeply browned and sweet-smelling.
- Optionally, add sugar halfway through cooking for extra sweetness.
Nutrition
Notes
Add herbs like thyme or rosemary for extra flavor; consider balsamic vinegar or red wine for a sweet twist. Store in an airtight container in the fridge for a week or freeze for months.
