Easy Grilled Onions Recipe

When the aroma of grilled onions fills the air, you know something delicious is cooking. This easy grilled onions recipe is a perfect addition to any barbecue or even a simple weeknight dinner. With just a few simple ingredients, you can create a dish that’s both aromatic and flavorful, making it an essential addition to your culinary repertoire.
Grilled onions have been a staple at our family gatherings for as long as I can remember. Growing up, it was always the dish that my mom would prepare first because everyone loved the sweet, smoky flavor. I recall my dad, with his chef hat on, working the grill while mom, with a twinkle in her eye, meticulously prepared the onions. Even now, at family reunions, the tradition continues, and those grilled onions always remind me of the warmth and joy of family gatherings.
Why You’ll Love This Recipe
This recipe is a winner for several reasons. It’s incredibly easy to prepare, requiring minimal ingredients while delivering maximum flavor. The combination of caramelized sweetness and smokiness makes it versatile for any menu. Additionally, it’s vegan and gluten-free, which means it’s perfect for serving guests with various dietary preferences. Whether you’re a seasoned chef or a novice cook, this recipe allows you to add a gourmet touch to your meals with little effort.
Ingredients Notes
The key ingredient, of course, is onions. Opt for large, sweet onions like Vidalia or Walla Walla for the best flavor. If these aren’t available, yellow onions will also work well. You can substitute olive oil with another oil of your choice, such as avocado or grapeseed oil. For extra flavor, consider adding a pinch of your favorite herbs or spices.
Recipe Steps
Step 1
Slice the onions into thick rounds, about half an inch in thickness, to ensure they grill evenly without falling apart.
Step 2
Brush each onion slice with olive oil on both sides to prevent them from sticking to the grill and to enhance the flavor.
Step 3
Preheat your grill to medium-high heat. Use a wire brush to clean the grates and then lightly oil them.
WANT TO SAVE THIS RECIPE?
Step 4
Place the onion slices directly on the grill. Cook for about 5-7 minutes on each side, or until you see nice grill marks and the onions are tender.
Step 5
Carefully remove from the grill and season with salt and pepper to taste, serving them warm.
Storage Options
Store any leftover grilled onions in an airtight container in the refrigerator for up to 4 days. If you’d like to freeze them, place the onions in a sealed bag or container, separating the layers with parchment paper to prevent sticking. Reheat them on a skillet over low heat or in the oven at a low temperature to restore their original flavor.
Variations & Substitutions
To add a burst of flavor, try sprinkling balsamic vinegar or fresh lime juice over the onions after grilling. For a spicy twist, incorporate a dash of cayenne pepper or paprika before grilling. If you prefer a smoky taste, use a smoker box or smoked sea salt as a seasoning.
Serving Suggestions
These onions are a versatile accompaniment to any meal. They make an excellent topping for burgers and sandwiches or can be served as a side dish for grilled meats, salads, or grain bowls. Consider pairing them with grilled bell peppers and mushrooms for a vibrant and healthy side dish.
Frequently Asked Questions
Can I use a grill pan instead of an outdoor grill? Yes, a grill pan is a great alternative. It provides similar grill marks and flavor without the need for an outdoor setup. Preheat the pan on your stove over medium-high heat, and follow the same grilling instructions.
Are there any alternatives to olive oil? Certainly! You can use any oil with a high smoke point, like avocado, canola, or grapeseed oil. These will give a similar texture and help prevent sticking while adding their unique flavor profiles.
How can I prevent onions from falling apart on the grill? Selecting the right thickness is key. Cut the onions into thicker slices, about half an inch, and handle them gently when flipping. A wide spatula is helpful in keeping them intact during grilling.

Easy Grilled Onions Recipe
Ingredients
Main Ingredients
- 2 large onions cut into thick slices
- 2 tablespoons olive oil
- 1 teaspoon salt
- 0.5 teaspoon black pepper freshly ground
Instructions
Preparation Steps
- Preheat the grill to medium heat.
- Brush onion slices with olive oil and season with salt and pepper.
- Place onion slices on the grill and cook for about 7-8 minutes per side, or until tender and charred.