Grilled Sweet Onions: A Flavorful Summer Delight
My grandfather, a true grill master, always said the secret to a good barbecue wasn’t just the meat, but the sides. And his grilled sweet onions? They were legendary. I remember the smoky aroma filling the backyard, the sweet and savory flavor exploding in my mouth, and the way everyone would fight over the last piece. To this day, the smell of grilled onions instantly transports me back to those warm summer evenings, surrounded by family and laughter. This recipe is my attempt to recapture that magic.
Recipe Overview
- Prep Time: 15 minutes
- Cook Time: 35 minutes
- Total Time: 50 minutes
- Servings: 4
- Dietary Type: Vegetarian
Ingredients
- 4 medium sweet onions (4 to 5 oz. each)
- 1 tablespoon margarine or 1 tablespoon butter
- 1 teaspoon dijon-style mustard
- ⅛ teaspoon hot pepper sauce
- 1 tablespoon brown sugar
- Pepper, to taste
Equipment Needed
- Cutting board
- Knife
- 4 pieces of heavy-duty foil (24″x18″)
- Grill with a drip pan
- Spoon or small whisk
Instructions
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Begin by peeling the onions. Remove the outer papery layers and any bruised or damaged sections.
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Carefully cut each onion into eight sections, being careful not to cut all the way through the base. You want the onion to remain intact at the bottom so the sections stay connected. This will allow the flavors to penetrate the onion while grilling.
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Prepare the foil packets. Cut the four pieces of heavy-duty foil into 24″x18″ pieces. Fold each piece in half crosswise. Then, cut the folded foil in half to create four 12″ squares. Using heavy-duty foil is essential for containing the steam and preventing the onions from burning.
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Place one onion in the middle of each foil square.
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In a small bowl, stir together the margarine (or butter), dijon-style mustard, and hot pepper sauce. This mixture will create a delicious glaze for the onions. Ensure the margarine or butter is softened or melted for easy mixing.
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Drizzle the margarine/butter mixture evenly over each onion, making sure to get some between the sections.
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Sprinkle each onion with the brown sugar. The brown sugar will caramelize during grilling, adding a delightful sweetness to balance the savory flavors.
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Bring up two opposite edges of each foil square and seal them together with a double fold. This creates a tight seal to trap the steam.
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Fold the remaining two sides of the foil to completely enclose the onion, leaving some room for steam to build up inside the packet. Ensure the packets are well-sealed to prevent steam from escaping.
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Cook the foil packets over medium heat on a grill with a drip pan underneath. The drip pan will catch any drippings and prevent flare-ups.
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Cover the grill and grill for 25 minutes or until the onions are tender. Check for tenderness by carefully opening one of the packets and poking an onion section with a fork.
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After 25 minutes, carefully cut a 2-inch opening in the top of each packet to release some of the steam. Be cautious when opening the packets, as hot steam will escape.
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Cover the grill again and grill for 10 minutes more, or until the onions are lightly browned. This final grilling step will add a beautiful color and caramelized flavor to the onions.
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Once cooked, sprinkle the onions with pepper to taste.
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Serve immediately and enjoy!
Oven Alternative: These onions can also be baked in the oven at 350 degrees Fahrenheit for the same amount of time as grilling.
Expert Tips & Tricks
- For a deeper smoky flavor, add a few wood chips (such as hickory or mesquite) to your grill. Soak the wood chips in water for about 30 minutes before placing them on the coals.
- If you don’t have heavy-duty foil, you can use two layers of regular foil to create a more durable packet.
- To prevent sticking, lightly spray the inside of the foil packets with cooking spray before placing the onions inside.
- Experiment with different types of mustard. Stone-ground mustard or even a sweet honey mustard can add interesting flavor variations.
- If you prefer a spicier kick, add a pinch of cayenne pepper or a dash of your favorite hot sauce to the margarine/butter mixture.
Serving & Storage Suggestions
Grilled sweet onions are a fantastic side dish for grilled meats, poultry, or even fish. They also make a delicious addition to burgers, sandwiches, and salads. For an attractive presentation, arrange the grilled onions on a platter and garnish with fresh herbs like parsley or chives.
Leftover grilled sweet onions can be stored in an airtight container in the refrigerator for up to 3 days. To reheat, simply microwave them for a minute or two, or warm them in a skillet over medium heat until heated through. You can also freeze grilled onions for up to 2 months. Thaw them in the refrigerator overnight before reheating.
Nutritional Information
| Nutrient | Amount per Serving | % Daily Value |
|---|---|---|
| Calories | 84.6 kcal | – |
| Calories from Fat | 26 g | 31% |
| Total Fat | 2.9 g | 4% |
| Saturated Fat | 0.5 g | 2% |
| Cholesterol | 0 mg | 0% |
| Sodium | 41.8 mg | 1% |
| Total Carbohydrate | 14.5 g | 4% |
| Dietary Fiber | 1.5 g | 6% |
| Sugars | 8 g | – |
| Protein | 1 g | 2% |
Variations & Substitutions
- Vegan: Ensure you use margarine instead of butter.
- Spice it up: Add a pinch of red pepper flakes to the butter mixture for a spicy kick.
- Herby Delight: Mix in fresh herbs like thyme or rosemary with the butter mixture.
- Sweet and Tangy: Add a splash of balsamic vinegar to the onions before sealing the foil packets.
- Different Onions: While sweet onions are ideal, you can use yellow or white onions in a pinch. Just be aware that they will have a stronger flavor.
FAQs (Frequently Asked Questions)
Q: Can I use regular onions instead of sweet onions?
A: Yes, you can, but the flavor will be much sharper. Sweet onions, like Vidalia or Walla Walla, caramelize beautifully and have a milder taste.
Q: Do I need to use heavy-duty foil?
A: It’s highly recommended. Regular foil is more likely to tear, allowing steam to escape and potentially causing the onions to burn.
Q: Can I prepare the foil packets ahead of time?
A: Absolutely! You can assemble the packets a few hours in advance and store them in the refrigerator until you’re ready to grill.
Q: What if my onions aren’t tender after 25 minutes of grilling?
A: Cooking times can vary depending on the heat of your grill and the size of the onions. Simply continue grilling for a few more minutes until they are tender.
Q: Can I use a different type of sweetener instead of brown sugar?
A: Yes, you can use maple syrup or honey as a substitute for brown sugar. The flavor will be slightly different, but still delicious.
Final Thoughts
I truly hope you give this recipe for Grilled Sweet Onions a try. It’s a simple yet satisfying dish that’s perfect for summer barbecues or any time you’re craving a flavorful and easy side. Feel free to experiment with different herbs, spices, and sweeteners to create your own unique variation. And please, share your feedback and any variations you come up with – I’d love to hear about your culinary adventures! These grilled onions pair beautifully with grilled steak, chicken, or even veggie burgers, and a crisp glass of Sauvignon Blanc makes a lovely accompaniment. Happy grilling!