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Grilled Sweet Onions Recipe

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This Grilled Sweet Onions Recipe is a fun way to make a simple side dish! The best thing about sweet grilled onions is that they go with just about anything! Be sure to check out the rest of my Easy Grilled Vegetable Recipes for more healthy and delicious side dish options!

The moment that you caramelize onions, your life is going to be changed!

Even the kids are going to love this grilled onion with bouillon cube recipe. Not only is it flavorful, but using sweet onions on the grill is really a fun way to cook them up, too!

One thing that I’ve found about cooking grilled Vidalia onions in foil is that you just can’t mess it up! The aluminum foil and the grill grates cook those thick slices perfectly every single time!

Grilled Sweet Onions Recipe

While I always love using sweet onions for this recipe, you can easily use yellow onions as well. If you’re a fan of onions, you might as well try them all! Adding the beef bouillon cube creates a great flavor that permeates throughout the rest of the onion. This recipe is seriously so simple to do!

My boys love to slice the onion and stir the onion around in the foil to make sure that they’re getting all that goodness. As long as they eat them, that’s all that matters to me!

Do you peel the outer layer of onion before cooking it?

You’ll find the best way to cut and cook the onions in the recipe card below. There’s a magic to the madness, and I explain it all there. You are going to need to cut to the center of the onion so that you can add in the other ingredients while cooking.

Specialty Ingredients:

The following ingredients are affiliate links on Amazon because they may be a bit hard to find in your normal store.  I wanted you to be able to see exactly which things we are using.

Reminder, not all ingredients in the Sweet Grilled Onions Recipe are linked above, just the ones that may be a bit difficult to find or that you might be unsure of what to look for

Shop My Kitchen:

The following items can be found in my kitchen here at Miller Manor. Simply click the image that interests you – yes, they do contain affiliate links.

Must Have Resources:

When making Vidalia Grilled Onions at home, you really need to have the following Amazon affiliate tools on hand.

2 Pack Apronner Bib Aprons for Women Soft Cotton Linen Kitchen Cooking Chef Apron with Pockets Adjustable Machine Washable 003Meat Chopper, Hamburger Chopper, Premium Heat Resistant Mix Chopper, Ground Beef Chopper Tool & Meat Fork, Potato Masher,Safe for Non-Stick CookwareFarberware Dishwasher Safe Nonstick Cookware Pots and Pans Set, 15 Piece, PewterFast Defrosting Tray - Meat Thawing Board for Natural Thawing Frozen Meat and Food - Miracle Thaw for Fridge - Rapid Thaw Defrosting Plate to Keep Original Food Flavor - Large with Drip Tray


Make it a Meal:

It’s time to give meal planning a try! You’re going to love how fast and simple it is to plan out the meals for the week. Long gone are the days that you have to stress over dinners!

Main Dish: Honey BBQ Chicken Wings

Starch Side: Parmesan Steak Fries with Ranch

Refreshing Drink: Orange Mocktail Recipe

Don’t forget Dessert: OREO White Chocolate Fudge Recipe

Best Grilled Recipes:

Once you make this Grilled Vegetable Recipe, you need to find even more grilled recipes to keep making! The grill is the perfect way to cook up a ton of delicious food, fast!

These Grilled Garlic Shrimp Skewers are always going to be a family favorite recipe in our house!

I literally the taste of these Grilled Salmon Sandwiches with Creamy Avocado!

Everyone will love eating this Maple Dijon Grilled Chicken!

Craving a Delicious Grilled Cheese? Yes, please!

Don’t miss out on these 20+ Delicious Grilled Chicken Recipes!

For a light and refreshing flavor, check out this Grilled Peach Salad with Grapefruit Vinaigrette!

The boys can’t get enough of the taste of these Chicken Kabobs on a George Foreman Grill!

Can you use grilled onions in other recipes?

You bet! It’s great for adding to stir fry or for making onion dip, too! Once you cook it, you can literally add the onion to just about anything that you’d like.

More Onion Recipes:

Grilled Sweet Onions Recipe

Grilled Sweet Onions Recipe

Prep Time: 5 minutes
Cook Time: 30 minutes
Total Time: 35 minutes

This is a favorite easy summer recipe my mom recently shared with me - it tastes like you're biting into French onion soup!


  • 2 whole sweet onions I used Vidalia®
  • 2 beef bouillon cubes
  • 2 teaspoons low calorie margarine divided
  • 2 12 x12-inch squares aluminum foil


  1. Preheat an outdoor grill to medium heat. Hubby used his gas grill, but any kind would work fine. (My mom actually uses a plastic container to cook hers in the microwave.)
  2. Peel brown outer layers from onions. Using a sharp knife, cut a cone-shaped core from the top of each onion, about 2/3 of the way into the vegetable. The core should be about 1 1/2 inches wide at the top. Insert a bouillon cube into the hollowed-out space in each onion.
  3. Top each with 1 teaspoon of margarine. Wrap each filled onion in a single sheet of aluminum foil, leaving a small vent at the top of each.
  4. Set the foil-wrapped onions on the preheated grill vent-sides up, and grill until onions are tender, 20 to 30 minutes.
Nutrition Information:
Yield: 2 Serving Size: 1
Amount Per Serving: Calories: 112Total Fat: 1gSaturated Fat: 0gTrans Fat: 0gUnsaturated Fat: 0gCholesterol: 0mgSodium: 504mgCarbohydrates: 25gFiber: 3gSugar: 17gProtein: 3g

Did you make this recipe?

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Have so much fun making these grilled onions! The flavor is sooooooo good!

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Tuesday 13th of June 2023

Could these onions be made in the oven??


Tuesday 31st of October 2023

Yes, you could make this recipe in the oven. I would cook then at 325 degrees for 40-50 minutes, or until they're as tender as you would like. You might want to stir them a couple times while they're cooking as well.


Wednesday 27th of June 2012

What a delicious looking meal! Perfect for summer.

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