Forktionary

Roasted Red Onion Mayo Recipe

Elevate your sandwiches, dips, and dressings with this unbelievably flavorful Roasted Red Onion Mayo! Perfectly roasted red onions blend seamlessly with creamy mayonnaise (or Miracle Whip!) for a taste sensation that's both simple and sophisticated. This recipe is a kitchen staple – double the batch and keep a jar in your fridge for quick and delicious meals anytime. The slow roasting brings out the onions' natural sweetness, creating a spread that's unbelievably versatile. Trust us, you'll want this in your life!

Prep Time 15 mins
Cook Time 35 mins
Calories 693.9 kcal
Protein 4g
Rating 5.0 (2 Reviews)
Roasted Red Onion Mayo 12

Recipe Actions

Share this recipe:

Recipe Author

Chef Forktionary, author of this recipe

Recipe adapted from Food.com. Standardized by Forktionary.

Ingredients for Roasted Red Onion Mayo

Cook Smarter with Sous, Your Kitchen Companion

Missing an ingredient for this Roasted Red Onion Mayo? Need a perfect wine pairing or a healthy side dish idea? Don't guess—ask Sous! Your AI-powered sous-chef is ready to help you swap ingredients, adjust serving sizes, and discover flavor tips in seconds.

How to Make Roasted Red Onion Mayo

  1. Preheat oven to 375°F (190°C).
  2. Chop 2 large red onions roughly. Spread them evenly on a small rimmed baking sheet.
  3. Drizzle with 2 tablespoons of olive oil.
  4. Sprinkle with 1/2 teaspoon salt and 1/4 teaspoon freshly ground black pepper. Toss to coat.
  5. Roast for 25-30 minutes, checking at 20 and 25 minutes. Onions should be soft and starting to brown.
  6. Remove from oven and let cool completely.
  7. Once cooled, transfer the onions to a food processor and pulse until finely chopped.
  8. Add 1 cup mayonnaise (or Miracle Whip) and pulse until well combined and spreadable.
  9. Taste and adjust seasoning with additional salt and pepper as needed.
  10. For best flavor, refrigerate for at least 8 hours before serving.
  11. Enjoy on sandwiches, as a dip, or thinned with a little milk or water for a delicious dressing!

Nutrition Information (Approximate per serving)

Sodium

62 g

Sugar

52g

Fat

42g

Carbs

14g

Recipe Categories (Choose a category and find related recipes!)

Starters Appetizers & Snacks Lunch European Mediterranean The Americas American Southern Vegetarian Gluten Free Summer Recipes Fall Recipes

Recipe Tags (Choose a tag and find related recipes!)

Weeknight 60 Minutes Or Less Time To Make Course Main Ingredient Cuisine Preparation Occasion North American Low Protein 5 Ingredients Or Less Condiments Etc Eggs Dairy American Easy Dietary Low In Something