This homemade onion oil is the secret to elevating everyday meals. With just a few ingredients and a little time, you can create an infused oil packed with rich flavor that’s super versatile.. Drizzle it over roasted veggies, stir it into soups, or use it as the base for stir-fries to add an irresistible depth to your cooking.
Slice your onions on a mandoline and then add them to your saute pan. Carefully pour the oil over the onions, then turn the heat on to medium heat.
Once you start to hear the onions sizzling turn the heat down to medium low and let the onions cook in the oil until they are all soft and just golden brown.
Turn off the heat and let the onion oil cool down.
Then using a small funnel transfer the flavored oil into a quart sized mason jar or back into the oil container. Label and refrigerate until you are ready to use.
Notes
Change the Quantity: While many recipes need to be followed exactly, this isn’t one of them. The method is what's important. If I need to serve a crowd, I’ll use as much oil as I can fit in my large saute pan and double the number of onions. It’s a VERY forgiving recipe.Slicing the onions: I suggest using a mandoline and a cutting glove so you can quickly get thin slices. A sharp knife and steady hand will also do the trick.Storage tip: Store the onion oil in the fridge for up to a month. I use a quart sized mason jar.