Roasted Onions

Discover the sweet and savory delight of Roasted Onions. Perfectly caramelized and tender, these onions make an excellent side dish or topping for your favorite meals.

Roasted Onions are just the thing when you’re having burgers, brats, or tacos. Slices of onion become tender, sweet, and irresistibly flavorful under the heat of the oven, making them the perfect complement to nearly any meal.

With just a drizzle of olive oil, a sprinkle of thyme, and a dash of salt and pepper, you can elevate your onions from a basic ingredient to a delicious side dish. Whether you’re looking to add depth to your hamburgers, steaks, or salads, or seeking a straightforward yet delicious side for your dinner table, roasted onions are here to impress.

Roasted onions are all about the magic that can happen in the kitchen with simple ingredients and a little heat. Whether you’re a seasoned chef or just starting out, roasting onions is an easy, foolproof way to add depth and flavor to your meals.

So next time you find yourself pondering over what to make for dinner, remember the humble onion and how, with just a bit of thyme, olive oil, and your oven, you can transform it into a golden, flavorful treat that’s sure to delight.

Common Questions About Roasted Onions

Can I Use Any Type of Onion for This Recipe?

Absolutely! While yellow onions are commonly used for their balance of sweetness and sharpness, feel free to experiment with sweet onions, small red onions, or whatever you have on hand for different flavors and textures.

Is It Necessary to Use Olive Oil?

Olive oil is preferred for its flavor, but you can also use avocado oil or even melted butter for a richer taste. Each brings its own unique flavor profile to the onions.

Can I Add Other Seasonings?

Certainly! While thyme is suggested for its earthy touch, feel free to add garlic cloves, balsamic vinegar, or kosher salt to suit your taste preferences.

Storage

Extra onion, please! It’s great to have some roasted onion on hand. Just in case you need a little something extra.

Refrigerator

Cool the onions completely and store them in an airtight container. They’ll keep for up to 2 days.

Freezer

For longer storage, place cooled onions in a freezer-safe container. They can be frozen for up to a month for best quality.

Tips

I think it’s amazing how much flavor these onions add to whatever you put them on. They’re just plain tasty!

• Cut onions evenly to ensure uniform cooking.
• Use parchment paper on your baking dish for easy cleanup.
• Roast cut sides down to get those deliciously crispy edges and a golden brown surface.
• Check onions during roasting to avoid overcooking; they should be tender, not mushy.
• Let onions cool slightly before serving to enhance their natural sweetness and make handling easier.

Ingredients

We’ll talk later about a few other things you could add to these onions. They’re super customizable.

• Onions
• Olive oil
• Thyme
• Salt
• Pepper

How to Make Roasted Onions

Cooking really doesn’t get much simpler than this. Make sure you save this roasted onions recipe for later!

1. Preheat the oven to 350 degrees. 
2. Prepare a baking sheet or an oven-safe pan. 
3. Cut the onions in half.  Remove the dry, outer layers.
4. Pour the olive oil, thyme, salt, and pepper into the pan, and stir to mix. 
5. Place the onions cut side down into the oil and spices.  
6. Bake for 50-60 minutes or until the onions are soft, tender, and roasted. 
7. Allow to cool, then slice and serve.  
8. Serve over hamburgers, steaks, salads, etc. 

Kitchen Supplies You’ll Need for Roasted Onions

I love adding these onions to sandwiches. Especially if they’re of the warm, cheesy variety! Add them to a simple grilled cheese sandwich and take things to a whole new level.

• Baking sheet or oven-safe pan
• Knife for slicing onions
• Measuring spoons for olive oil and seasonings
• Mixing spoon for combining oil and spices

What to Serve With Roasted Onions

Roasted onions are incredibly versatile, making them a delightful addition to hamburgers, steaks, and salads.

They also pair beautifully with grilled meats, adding a savory sweetness to each bite, or as a standalone side that complements both casual and special occasions.

Why You Should Make Roasted Onions

I’ve you’ve never done something like this before, don’t worry. This is a really simple recipe that will pay off in a big way with all the flavor. 

• Elevates meals with minimal effort, adding a rich, caramelized flavor to simple dishes.
• Versatile, working as both a side dish or topping for a variety of meals.
• Easy to prepare, making it an excellent choice for cooks of all levels.
• A delicious way to enjoy vegetables, turning onion skeptics into fans.

Variations and Add-Ins for Roasted Onions

Let me know in the comments how these turned out for you. What did you add them to? Or do you just like eating roasted onions all by themselves? Ha!

• Balsamic glazed: Drizzle with balsamic vinegar before roasting for a tangy twist.
• Garlic lover’s delight: Add minced garlic cloves for a bold flavor.
• Herb infused: Mix in rosemary or other fresh herbs for additional aroma.
• Cheesy onions: Sprinkle some grated Parmesan over the onions in the last few minutes of roasting for a cheesy, savory finish.
• Spicy kick: A pinch of red pepper flakes can add just the right amount of heat for those who enjoy a little spice.

If you love this easy side dish recipe, you’re going to love these other side dishes too. Please click each link below to find the easy, printable recipe!

More Great Onion Recipes

Crunchy Onion Burger

Best Beer Battered Onion Rings

French Onion Chicken Noodle Casserole

Prosciutto French Onion Tea Sandwiches

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