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Homemade sweet onion vinaigrette in glass jar with fresh ingredients on wooden table

Sweet Onion Vinaigrette Recipe! Easy Homemade Recipe, Healthy Variations & Expert Tips

A fresh homemade sweet onion vinaigrette with a silky texture, gentle sweetness, and bright tang. Made with simple real ingredients, this dressing enhances salads, grain bowls, and roasted vegetables without tasting heavy or processed.
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Prep Time 10 minutes
Cook Time 30 minutes
Total Time 40 minutes
Course: Dressing / Sauce
Cuisine: American
Ingredients Equipment Method Notes

Ingredients
  

  • ½ cup chopped sweet onion (about 75 g)
  • ⅓ cup apple cider vinegar
  • ½ cup olive oil
  • 2 tbsp honey or maple syrup (vegan option)
  • 1 tbsp Dijon mustard
  • ½ tbsp salt
  • ¼ tbsp black pepper

Equipment

  • Blender or food processor
  • Measuring cups and spoons
  • Cutting board
  • Sharp knife
  • Spatula
  • Glass jar or airtight container

Method
 

  1. Add chopped sweet onion to a blender.
  2. Blend until smooth to create a creamy base.
  3. Add apple cider vinegar and honey (or maple syrup).
  4. Blend again until fully combined.
  5. Taste to check the sweet–tangy balance.
  6. With the blender running on low speed, slowly pour in the olive oil.
  7. This creates a smooth, creamy emulsion that prevents separation.
  8. Add salt, pepper, and Dijon mustard.
  9. Blend briefly to combine.
  10. Transfer to a jar and refrigerate for at least 30 minutes.

Notes

Healthy Variations

Low-Sugar Version

Reduce the amount of honey or use a natural, low-calorie sweetener.

Keto Version

Use a sugar-free sweetener and avocado oil.

Vegan Version

Replace honey with maple syrup.

Oil-Free Version

Substitute olive oil with:
  • Greek yogurt
  • Tahini
  • Silken tofu
This creates a creamy dressing rather than a classic vinaigrette.

Ingredient Substitutions

  • Apple cider vinegar → White wine vinegar
  • Olive oil → Avocado oil
  • Dijon mustard → Yellow mustard
  • Sweet onion → Mild white onion
Always taste and adjust after substitutions.

Storage Tips

  • Store in a sealed glass jar
  • Keep refrigerated
  • Use within 5–7 days
  • Shake well before each use.