This Mustard Grilled Onions recipe is so simple and simply yummy. You are going to wonder why you haven’t made it before! Starting with large sweet onions like a Vidalia, the grill creates the perfect flavor, and the mustard sauce bumps it up even more!

These grilled onions pair perfectly with just about anything you are serving, from burgers to steak to chicken! Think of these onions as a side dish or a garnish. Either way, they will be a big hit with any crowd that you are feeding!

These grilled onions have so much flavor and take only a few minutes to prepare. I love to serve them as a side with my grilled steaks. You need to find out what your favorite pairing might be!

WHAT DO YOU NEED TO MAKE Mustard GRILLED Onions?

How to make Mustard Grilled Onions

Preheat your grill to medium hot, about 350 -375 degrees F. Cut the ends off the onions and remove the outer layer and discard.

Slice each onion into 1/2 to 3/4 inch thick slices. Carefully insert a pair of metal skewers into each onion slice so that they are parallel to each other.

This will keep the onion slices intact when you have them on the grill. You can usually thread 2-3 slices of onion onto each pair of skewers. Of course, that will depend upon the size of your onions and the length of your skewers.

Place the skewered onions on a large baking sheet and set them aside. Then combine the melted butter, Dijon mustard, honey, Worcestershire sauce, garlic powder, and thyme in a bowl. And whisk so that the mixture is well blended.

Brush both sides of the onions with the mustard butter mixture. Now it’s time to get these babies on the grill!!

Grilling the mustard grilled onions

Place the onions on the preheated grill and cook for 15 -20 minutes. Turn the onions once after 7-10 minutes.

Brush the remaining mustard butter mixture on the onions after you have turned them. You are looking for nice char marks on both sides. The onions should also be nice and tender.

Serving your mustard grilled onions

As I mentioned earlier, these wonderfully flavorful mustard grilled onions work perfectly on top of your favorite grilled burger. They also pair nicely with any other grill or roasted proteins that you are serving.

For onion lovers, I like to serve the whole slice on top of a burger or steak. Alternatively, you can put the onions on a platter as a side dish and let everyone take as much as they like.

The sweet onion, when grilled, has natural sugars that come out, and the flavor is amazing. Make sure you use sweet onions or white onions; yellow onions or red onions will work. Although you will get a much different flavor from them.

That said, if you love caramelized onions try all the different varieties. They may work wonderfully with different dishes! As an onion lover, I love making onions in different ways!

I like to make sure and remove the onions from the skewers after grilling but before plating. Remember, the skewers being metal are hot, and you don’t want anyone to burn themselves reaching for an onion!

Don’t they look absolutely amazing? Time to get the skewers out and grill up some mustard grilled onions tonight!

Pin it HERE!!

Pin it HERE!!

Continue to Content

Yield: 6 Servings

Mustard Grilled Onions

Print

These mustard grilled onions are the perfect side or garnish for any meal. The sweet sugars of the onions really come out, and the tangy sweet mustard sauce is amazing!

Prep Time 10 minutes

Cook Time 20 minutes

Total Time 30 minutes

Ingredients

• 2 large sweet onions
• ¼ cup butter, melted
• ¼ cup Dijon mustard
• ¼ cup honey
• 2 tsp Worcestershire sauce
• ½ tsp garlic powder
• ½ tsp thyme

Instructions

1. Preheat your BBQ grill to medium heat (350 – 375 degrees F.).
2. Cut the end off the onions and remove the outer layer.
3. Slice the onions into 1/2 to 3/4-inch thick slices.
4. Insert a pair of metal skewers parallel to each other through each onion slice; the skewers should be approximately 1 inch apart. This will keep the onion rings intact while you are grilling them. You can thread 2-3 onion slices onto each pair of skewers, depending upon the size of the onion and the length of your metal skewers.
5. Place the skewed onion slices on a large tray or baking sheet.
6. Combine the remaining ingredients in a small bowl and whisk to blend.
7. Brush both sides of the onions with the butter and mustard mixture.
8. Place the onions on the grill and cook for 15-20 minutes. Turning once, grill until they are tender and slightly charred on both sides. Brush the remaining butter mixture on the onions after you turn them.
9. Serve as a side dish or on top of a steak or burger.

Recommended Products

As an Amazon Associate and member of other affiliate programs, I earn from qualifying purchases.

• 
  JOMVERL 12PCS Kabob Skewers Flat Metal BBQ Barbecue Skewer 14" Long Stainless Steel Shish Kebob Sticks Wide Reusable Grilling Skewers Set for Meat Shrimp Chicken Vegetable, 12 Pack
• 
  Grilljoy 6PCS Heavy Duty BBQ Grill Tools Set with Extra Thick Stainless Steel Spatula, Fork, Tongs & Cleaning Brush - Complete Barbecue Accessories Kit with Portable Bag - Perfect Grill Gifts for Men
• 
  John Boos MPL1812125G Chop-N-Slice Select Maple Edge Grain Cutting Board, 18 Inches x 12 Inches x 1.25 Inches

Nutrition Information:

Yield:

6

Serving Size:

1
Amount Per Serving: Calories: 155Total Fat: 8gSaturated Fat: 5gTrans Fat: 0gUnsaturated Fat: 3gCholesterol: 20mgSodium: 359mgCarbohydrates: 21gFiber: 1gSugar: 17gProtein: 1g

Recipe calculation was provided by Nutritionix and is estimation only. If you need nutritional calculations for medical reasons, please use a source that you trust